56516021651670 has 32 divisors (see below), whose sum is σ = 155015373673728. Its totient is φ = 12917947806048.

The previous prime is 56516021651659. The next prime is 56516021651743. The reversal of 56516021651670 is 7615612061565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134561956104 + ... + 134561956523.

It is an arithmetic number, because the mean of its divisors is an integer number (4844230427304).

Almost surely, 2^{56516021651670} is an apocalyptic number.

56516021651670 is an abundant number, since it is smaller than the sum of its proper divisors (98499352022058).

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

56516021651670 is a wasteful number, since it uses less digits than its factorization.

56516021651670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269123912644.

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 56516021651670 in words is "fifty-six trillion, five hundred sixteen billion, twenty-one million, six hundred fifty-one thousand, six hundred seventy".