164930964617 has 4 divisors (see below), whose sum is σ = 165021438720. Its totient is φ = 164840490516.

The previous prime is 164930964613. The next prime is 164930964641. The reversal of 164930964617 is 716469039461.

It is a happy number.

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 164930964617 - 2² = 164930964613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164930964613) 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, 45234317 + ... + 45237962.

It is an arithmetic number, because the mean of its divisors is an integer number (41255359680).

Almost surely, 2^164930964617 is an apocalyptic number.

It is an amenable number.

164930964617 is a deficient number, since it is larger than the sum of its proper divisors (90474103).

164930964617 is an equidigital number, since it uses as much as digits as its factorization.

164930964617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90474102.

The product of its (nonzero) digits is 5878656, while the sum is 56.

The spelling of 164930964617 in words is "one hundred sixty-four billion, nine hundred thirty million, nine hundred sixty-four thousand, six hundred seventeen".