164277564 has 48 divisors (see below), whose sum is σ = 418938240. Its totient is φ = 49688640.

The previous prime is 164277563. The next prime is 164277571. The reversal of 164277564 is 465772461.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164277563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111867 + ... + 113325.

It is an arithmetic number, because the mean of its divisors is an integer number (8727880).

Almost surely, 2^164277564 is an apocalyptic number.

It is an amenable number.

164277564 is an abundant number, since it is smaller than the sum of its proper divisors (254660676).

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

164277564 is a wasteful number, since it uses less digits than its factorization.

164277564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2328 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 164277564 is about 12817.0809469239. The cubic root of 164277564 is about 547.6789948722.

The spelling of 164277564 in words is "one hundred sixty-four million, two hundred seventy-seven thousand, five hundred sixty-four".