164316612257 has 4 divisors (see below), whose sum is σ = 187790414016. Its totient is φ = 140842810500.

The previous prime is 164316612253. The next prime is 164316612263. The reversal of 164316612257 is 752216613461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164316612257 - 2² = 164316612253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164316612253) 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, 11736900869 + ... + 11736900882.

It is an arithmetic number, because the mean of its divisors is an integer number (46947603504).

Almost surely, 2^164316612257 is an apocalyptic number.

It is an amenable number.

164316612257 is a deficient number, since it is larger than the sum of its proper divisors (23473801759).

164316612257 is an equidigital number, since it uses as much as digits as its factorization.

164316612257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23473801758.

The product of its digits is 362880, while the sum is 44.

The spelling of 164316612257 in words is "one hundred sixty-four billion, three hundred sixteen million, six hundred twelve thousand, two hundred fifty-seven".