56166244354553 has 16 divisors (see below), whose sum is σ = 60158838730752. Its totient is φ = 52320305400000.

The previous prime is 56166244354489. The next prime is 56166244354567. The reversal of 56166244354553 is 35545344266165.

It is a cyclic number.

It is not a de Polignac number, because 56166244354553 - 2⁶ = 56166244354489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56166244354492 and 56166244354501.

It is not an unprimeable number, because it can be changed into a prime (56166244354573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198041273 + ... + 198324678.

It is an arithmetic number, because the mean of its divisors is an integer number (3759927420672).

Almost surely, 2^{56166244354553} is an apocalyptic number.

It is an amenable number.

56166244354553 is a deficient number, since it is larger than the sum of its proper divisors (3992594376199).

56166244354553 is a wasteful number, since it uses less digits than its factorization.

56166244354553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396366136.

The product of its digits is 155520000, while the sum is 59.

The spelling of 56166244354553 in words is "fifty-six trillion, one hundred sixty-six billion, two hundred forty-four million, three hundred fifty-four thousand, five hundred fifty-three".