56387660205 has 32 divisors (see below), whose sum is σ = 92520895104. Its totient is φ = 29309607936.

The previous prime is 56387660183. The next prime is 56387660207. The reversal of 56387660205 is 50206678365.

It is not a de Polignac number, because 56387660205 - 2¹² = 56387656109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56387660207) 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, 199117 + ... + 390413.

It is an arithmetic number, because the mean of its divisors is an integer number (2891277972).

Almost surely, 2^56387660205 is an apocalyptic number.

It is an amenable number.

56387660205 is a deficient number, since it is larger than the sum of its proper divisors (36133234899).

56387660205 is a wasteful number, since it uses less digits than its factorization.

56387660205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191805.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 56387660205 in words is "fifty-six billion, three hundred eighty-seven million, six hundred sixty thousand, two hundred five".