2655665012 has 192 divisors, whose sum is σ = 6467586048. Its totient is φ = 921024000.

The previous prime is 2655665009. The next prime is 2655665059. The reversal of 2655665012 is 2105665562.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20272187 + ... + 20272317.

It is an arithmetic number, because the mean of its divisors is an integer number (33685344).

Almost surely, 2^2655665012 is an apocalyptic number.

2655665012 is a gapful number since it is divisible by the number (22) 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 2655665012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3233793024).

2655665012 is an abundant number, since it is smaller than the sum of its proper divisors (3811921036).

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

2655665012 is a wasteful number, since it uses less digits than its factorization.

2655665012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2655665012 is about 51533.1447905132. The cubic root of 2655665012 is about 1384.8128897877.

The spelling of 2655665012 in words is "two billion, six hundred fifty-five million, six hundred sixty-five thousand, twelve".