164457656 has 16 divisors (see below), whose sum is σ = 336390840. Its totient is φ = 74753440.

The previous prime is 164457649. The next prime is 164457661. The reversal of 164457656 is 656754461.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934331 + ... + 934506.

Almost surely, 2^164457656 is an apocalyptic number.

It is an amenable number.

164457656 is an abundant number, since it is smaller than the sum of its proper divisors (171933184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164457656 is a wasteful number, since it uses less digits than its factorization.

164457656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868854 (or 1868850 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 164457656 is about 12824.1044911526. The cubic root of 164457656 is about 547.8790558392.

The spelling of 164457656 in words is "one hundred sixty-four million, four hundred fifty-seven thousand, six hundred fifty-six".