56912244221965 has 32 divisors (see below), whose sum is σ = 77745304313856. Its totient is φ = 39589736746560.

The previous prime is 56912244221953. The next prime is 56912244221983.

56912244221965 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56912244221965 - 2¹¹ = 56912244219917 is a prime.

It is a super-2 number, since 2×56912244221965² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35939022 + ... + 37489168.

It is an arithmetic number, because the mean of its divisors is an integer number (2429540759808).

Almost surely, 2^{56912244221965} is an apocalyptic number.

56912244221965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56912244221965 is a deficient number, since it is larger than the sum of its proper divisors (20833060091891).

56912244221965 is a wasteful number, since it uses less digits than its factorization.

56912244221965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579209.

The product of its digits is 18662400, while the sum is 58.

The spelling of 56912244221965 in words is "fifty-six trillion, nine hundred twelve billion, two hundred forty-four million, two hundred twenty-one thousand, nine hundred sixty-five".