2660853888 has 576 divisors, whose sum is σ = 10073568960. Its totient is φ = 684288000.

The previous prime is 2660853883. The next prime is 2660853893. The reversal of 2660853888 is 8883580662.

2660853888 is a `hidden beast` number, since 26 + 6 + 0 + 8 + 538 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (2660853883) and next prime (2660853893).

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660853883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 26345038 + ... + 26345138.

It is an arithmetic number, because the mean of its divisors is an integer number (17488835).

Almost surely, 2^2660853888 is an apocalyptic number.

2660853888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2660853888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5036784480).

2660853888 is an abundant number, since it is smaller than the sum of its proper divisors (7412715072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660853888 is a wasteful number, since it uses less digits than its factorization.

2660853888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The square root of 2660853888 is about 51583.4652577742. The cubic root of 2660853888 is about 1385.7142267960.

The spelling of 2660853888 in words is "two billion, six hundred sixty million, eight hundred fifty-three thousand, eight hundred eighty-eight".