164077429931 has 4 divisors (see below), whose sum is σ = 164499223200. Its totient is φ = 163655636664.

The previous prime is 164077429903. The next prime is 164077429939. The reversal of 164077429931 is 139924770461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164077429931 is a prime.

It is a super-2 number, since 2×164077429931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164077429939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210896051 + ... + 210896828.

It is an arithmetic number, because the mean of its divisors is an integer number (41124805800).

Almost surely, 2^164077429931 is an apocalyptic number.

164077429931 is a deficient number, since it is larger than the sum of its proper divisors (421793269).

164077429931 is an equidigital number, since it uses as much as digits as its factorization.

164077429931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421793268.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 164077429931 in words is "one hundred sixty-four billion, seventy-seven million, four hundred twenty-nine thousand, nine hundred thirty-one".