56661215262 has 16 divisors (see below), whose sum is σ = 113325167232. Its totient is φ = 18886615640.

The previous prime is 56661215251. The next prime is 56661215269. The reversal of 56661215262 is 26251216665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56661215269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239383 + ... + 413069.

It is an arithmetic number, because the mean of its divisors is an integer number (7082822952).

Almost surely, 2^56661215262 is an apocalyptic number.

56661215262 is an abundant number, since it is smaller than the sum of its proper divisors (56663951970).

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

56661215262 is a wasteful number, since it uses less digits than its factorization.

56661215262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228063.

The product of its digits is 259200, while the sum is 42.

The spelling of 56661215262 in words is "fifty-six billion, six hundred sixty-one million, two hundred fifteen thousand, two hundred sixty-two".