164496564 has 36 divisors (see below), whose sum is σ = 420490980. Its totient is φ = 54215040.

The previous prime is 164496559. The next prime is 164496583. The reversal of 164496564 is 465694461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82955664 + 81540900 = 9108^2 + 9030^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22467 + ... + 28874.

It is an arithmetic number, because the mean of its divisors is an integer number (11680305).

Almost surely, 2^164496564 is an apocalyptic number.

It is an amenable number.

164496564 is an abundant number, since it is smaller than the sum of its proper divisors (255994416).

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

164496564 is a wasteful number, since it uses less digits than its factorization.

164496564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51440 (or 51435 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 164496564 is about 12825.6213884552. The cubic root of 164496564 is about 547.9222588495.

The spelling of 164496564 in words is "one hundred sixty-four million, four hundred ninety-six thousand, five hundred sixty-four".