664577070551602 has 64 divisors (see below), whose sum is σ = 1147778073146880. Its totient is φ = 286178118336000.

The previous prime is 664577070551591. The next prime is 664577070551651. The reversal of 664577070551602 is 206155070775466.

664577070551602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 118651224 + ... + 124126012.

It is an arithmetic number, because the mean of its divisors is an integer number (17934032392920).

Almost surely, 2^{664577070551602} is an apocalyptic number.

664577070551602 is a deficient number, since it is larger than the sum of its proper divisors (483201002595278).

664577070551602 is a wasteful number, since it uses less digits than its factorization.

664577070551602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479819.

The product of its (nonzero) digits is 74088000, while the sum is 61.

The spelling of 664577070551602 in words is "six hundred sixty-four trillion, five hundred seventy-seven billion, seventy million, five hundred fifty-one thousand, six hundred two".