164234791057 has 4 divisors (see below), whose sum is σ = 164561302080. Its totient is φ = 163908280036.

The previous prime is 164234791043. The next prime is 164234791081. The reversal of 164234791057 is 750197432461.

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 a cyclic number.

It is not a de Polignac number, because 164234791057 - 2¹¹ = 164234789009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164234791057.

It is not an unprimeable number, because it can be changed into a prime (164234791757) 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, 163254757 + ... + 163255762.

It is an arithmetic number, because the mean of its divisors is an integer number (41140325520).

Almost surely, 2^164234791057 is an apocalyptic number.

It is an amenable number.

164234791057 is a deficient number, since it is larger than the sum of its proper divisors (326511023).

164234791057 is an equidigital number, since it uses as much as digits as its factorization.

164234791057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326511022.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 164234791057 in words is "one hundred sixty-four billion, two hundred thirty-four million, seven hundred ninety-one thousand, fifty-seven".