56166435572432 has 10 divisors (see below), whose sum is σ = 108822468921618. Its totient is φ = 28083217786208.

The previous prime is 56166435572393. The next prime is 56166435572453. The reversal of 56166435572432 is 23427553466165.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32988527422096 + 23177908150336 = 5743564^2 + 4814344^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755201111623 + ... + 1755201111654.

Almost surely, 2^{56166435572432} is an apocalyptic number.

It is an amenable number.

56166435572432 is a deficient number, since it is larger than the sum of its proper divisors (52656033349186).

56166435572432 is a wasteful number, since it uses less digits than its factorization.

56166435572432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510402223285 (or 3510402223279 counting only the distinct ones).

The product of its digits is 108864000, while the sum is 59.

The spelling of 56166435572432 in words is "fifty-six trillion, one hundred sixty-six billion, four hundred thirty-five million, five hundred seventy-two thousand, four hundred thirty-two".