2656064638152 has 128 divisors (see below), whose sum is σ = 7705374566400. Its totient is φ = 846131178816.

The previous prime is 2656064638127. The next prime is 2656064638153. The reversal of 2656064638152 is 2518364606562.

2656064638152 is a `hidden beast` number, since 2 + 6 + 56 + 0 + 6 + 463 + 81 + 52 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2656064638153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5547933 + ... + 6007635.

It is an arithmetic number, because the mean of its divisors is an integer number (60198238800).

Almost surely, 2^{2656064638152} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2656064638152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3852687283200).

2656064638152 is an abundant number, since it is smaller than the sum of its proper divisors (5049309928248).

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

2656064638152 is a wasteful number, since it uses less digits than its factorization.

2656064638152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460904 (or 460894 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 2656064638152 in words is "two trillion, six hundred fifty-six billion, sixty-four million, six hundred thirty-eight thousand, one hundred fifty-two".