56166400233243 has 12 divisors (see below), whose sum is σ = 81135467950368. Its totient is φ = 37441394590320.

The previous prime is 56166400233239. The next prime is 56166400233283. The reversal of 56166400233243 is 34233200466165.

56166400233243 is a `hidden beast` number, since 5 + 6 + 1 + 6 + 6 + 400 + 233 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 56166400233243 - 2² = 56166400233239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56166400233283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239228803 + ... + 239463468.

It is an arithmetic number, because the mean of its divisors is an integer number (6761288995864).

Almost surely, 2^{56166400233243} is an apocalyptic number.

56166400233243 is a deficient number, since it is larger than the sum of its proper divisors (24969067717125).

56166400233243 is a wasteful number, since it uses less digits than its factorization.

56166400233243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478705314 (or 478705311 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 56166400233243 in words is "fifty-six trillion, one hundred sixty-six billion, four hundred million, two hundred thirty-three thousand, two hundred forty-three".