164533456 has 20 divisors (see below), whose sum is σ = 320031972. Its totient is φ = 81944576.

The previous prime is 164533427. The next prime is 164533469. The reversal of 164533456 is 654335461.

It can be written as a sum of positive squares in 2 ways, for example, as 128051856 + 36481600 = 11316^2 + 6040^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15895 + ... + 24118.

Almost surely, 2^164533456 is an apocalyptic number.

164533456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164533456 is a deficient number, since it is larger than the sum of its proper divisors (155498516).

164533456 is a wasteful number, since it uses less digits than its factorization.

164533456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40278 (or 40272 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 164533456 is about 12827.0595227433. The cubic root of 164533456 is about 547.9632170242.

The spelling of 164533456 in words is "one hundred sixty-four million, five hundred thirty-three thousand, four hundred fifty-six".