2660936040 has 192 divisors, whose sum is σ = 9917631360. Its totient is φ = 606113280.

The previous prime is 2660936029. The next prime is 2660936053. The reversal of 2660936040 is 406390662.

2660936040 is a `hidden beast` number, since 2 + 6 + 609 + 3 + 6 + 0 + 40 = 666.

2660936040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2660935986 and 2660936004.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797175 + ... + 800505.

It is an arithmetic number, because the mean of its divisors is an integer number (51654330).

Almost surely, 2^2660936040 is an apocalyptic number.

2660936040 is a gapful number since it is divisible by the number (20) 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 2660936040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4958815680).

2660936040 is an abundant number, since it is smaller than the sum of its proper divisors (7256695320).

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

2660936040 is a wasteful number, since it uses less digits than its factorization.

2660936040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672 (or 3665 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 2660936040 is about 51584.2615533071. The cubic root of 2660936040 is about 1385.7284876346.

The spelling of 2660936040 in words is "two billion, six hundred sixty million, nine hundred thirty-six thousand, forty".