56356643402634 has 16 divisors (see below), whose sum is σ = 112714222802688. Its totient is φ = 18785391801312.

The previous prime is 56356643402557. The next prime is 56356643402651. The reversal of 56356643402634 is 43620434665365.

It is a super-2 number, since 2×56356643402634² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38215947 + ... + 39663230.

It is an arithmetic number, because the mean of its divisors is an integer number (7044638925168).

Almost surely, 2^{56356643402634} is an apocalyptic number.

56356643402634 is an abundant number, since it is smaller than the sum of its proper divisors (56357579400054).

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

56356643402634 is a wasteful number, since it uses less digits than its factorization.

56356643402634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77999789.

The product of its (nonzero) digits is 111974400, while the sum is 57.

The spelling of 56356643402634 in words is "fifty-six trillion, three hundred fifty-six billion, six hundred forty-three million, four hundred two thousand, six hundred thirty-four".