31324560655 has 16 divisors (see below), whose sum is σ = 40210944480. Its totient is φ = 23342395392.

The previous prime is 31324560599. The next prime is 31324560661. The reversal of 31324560655 is 55606542313.

It is a cyclic number.

It is not a de Polignac number, because 31324560655 - 2¹¹ = 31324558607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1891365 + ... + 1907854.

It is an arithmetic number, because the mean of its divisors is an integer number (2513184030).

Almost surely, 2^31324560655 is an apocalyptic number.

31324560655 is a deficient number, since it is larger than the sum of its proper divisors (8886383825).

31324560655 is a wasteful number, since it uses less digits than its factorization.

31324560655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799338.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 31324560655 in words is "thirty-one billion, three hundred twenty-four million, five hundred sixty thousand, six hundred fifty-five".