56653319645 has 64 divisors (see below), whose sum is σ = 76036133376. Its totient is φ = 40261985280.

The previous prime is 56653319633. The next prime is 56653319651. The reversal of 56653319645 is 54691335665.

It is not a de Polignac number, because 56653319645 - 2⁴ = 56653319629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44363747 + ... + 44365023.

It is an arithmetic number, because the mean of its divisors is an integer number (1188064584).

Almost surely, 2^56653319645 is an apocalyptic number.

It is an amenable number.

56653319645 is a deficient number, since it is larger than the sum of its proper divisors (19382813731).

56653319645 is a wasteful number, since it uses less digits than its factorization.

56653319645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590.

The product of its digits is 8748000, while the sum is 53.

The spelling of 56653319645 in words is "fifty-six billion, six hundred fifty-three million, three hundred nineteen thousand, six hundred forty-five".