56216464436644 has 24 divisors (see below), whose sum is σ = 98757080219448. Its totient is φ = 28000277859840.

The previous prime is 56216464436563. The next prime is 56216464436731. The reversal of 56216464436644 is 44663446461265.

It can be written as a sum of positive squares in 4 ways, for example, as 1564155438244 + 54652308998400 = 1250662^2 + 7392720^2 .

It is a super-3 number, since 3×56216464436644³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13413877 + ... + 17098684.

It is an arithmetic number, because the mean of its divisors is an integer number (4114878342477).

Almost surely, 2^{56216464436644} is an apocalyptic number.

It is an amenable number.

56216464436644 is a deficient number, since it is larger than the sum of its proper divisors (42540615782804).

56216464436644 is a wasteful number, since it uses less digits than its factorization.

56216464436644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30514335 (or 30514333 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 61.

The spelling of 56216464436644 in words is "fifty-six trillion, two hundred sixteen billion, four hundred sixty-four million, four hundred thirty-six thousand, six hundred forty-four".