70664172051 has 64 divisors (see below), whose sum is σ = 112464101376. Its totient is φ = 38964595200.

The previous prime is 70664172037. The next prime is 70664172083. The reversal of 70664172051 is 15027146607.

It is not a de Polignac number, because 70664172051 - 2¹³ = 70664163859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70664172011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22311070 + ... + 22314236.

It is an arithmetic number, because the mean of its divisors is an integer number (1757251584).

Almost surely, 2^70664172051 is an apocalyptic number.

70664172051 is a deficient number, since it is larger than the sum of its proper divisors (41799929325).

70664172051 is a wasteful number, since it uses less digits than its factorization.

70664172051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 70664172051 in words is "seventy billion, six hundred sixty-four million, one hundred seventy-two thousand, fifty-one".