56121455598845 has 32 divisors (see below), whose sum is σ = 82887568178688. Its totient is φ = 35522818967808.

The previous prime is 56121455598841. The next prime is 56121455598889. The reversal of 56121455598845 is 54889555412165.

It is a cyclic number.

It is not a de Polignac number, because 56121455598845 - 2² = 56121455598841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56121455598841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116638952 + ... + 117119118.

It is an arithmetic number, because the mean of its divisors is an integer number (2590236505584).

Almost surely, 2^{56121455598845} is an apocalyptic number.

It is an amenable number.

56121455598845 is a deficient number, since it is larger than the sum of its proper divisors (26766112579843).

56121455598845 is a wasteful number, since it uses less digits than its factorization.

56121455598845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737069.

The product of its digits is 345600000, while the sum is 68.

The spelling of 56121455598845 in words is "fifty-six trillion, one hundred twenty-one billion, four hundred fifty-five million, five hundred ninety-eight thousand, eight hundred forty-five".