164880791 has 4 divisors (see below), whose sum is σ = 168715272. Its totient is φ = 161046312.

The previous prime is 164880787. The next prime is 164880811. The reversal of 164880791 is 197088461.

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

It is a cyclic number.

It is not a de Polignac number, because 164880791 - 2² = 164880787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164880731) 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, 1917176 + ... + 1917261.

It is an arithmetic number, because the mean of its divisors is an integer number (42178818).

Almost surely, 2^164880791 is an apocalyptic number.

164880791 is a deficient number, since it is larger than the sum of its proper divisors (3834481).

164880791 is an equidigital number, since it uses as much as digits as its factorization.

164880791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834480.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 164880791 is about 12840.5915362183. The cubic root of 164880791 is about 548.3485348738.

The spelling of 164880791 in words is "one hundred sixty-four million, eight hundred eighty thousand, seven hundred ninety-one".