164553957 has 8 divisors (see below), whose sum is σ = 243783680. Its totient is φ = 109702620.

The previous prime is 164553941. The next prime is 164553973. The reversal of 164553957 is 759355461.

164553957 is a `hidden beast` number, since 1 + 6 + 4 + 553 + 95 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (164553941) and next prime (164553973).

It is not a de Polignac number, because 164553957 - 2⁴ = 164553941 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 (164553997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3047269 + ... + 3047322.

It is an arithmetic number, because the mean of its divisors is an integer number (30472960).

Almost surely, 2^164553957 is an apocalyptic number.

It is an amenable number.

164553957 is a deficient number, since it is larger than the sum of its proper divisors (79229723).

164553957 is an equidigital number, since it uses as much as digits as its factorization.

164553957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094600 (or 6094594 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 164553957 is about 12827.8586287813. The cubic root of 164553957 is about 547.9859749638.

The spelling of 164553957 in words is "one hundred sixty-four million, five hundred fifty-three thousand, nine hundred fifty-seven".