165644496 has 30 divisors (see below), whose sum is σ = 463574930. Its totient is φ = 55214784.

The previous prime is 165644477. The next prime is 165644513. The reversal of 165644496 is 694446561.

It is a happy number.

165644496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 94478400 + 71166096 = 9720^2 + 8436^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575011 + ... + 575298.

Almost surely, 2^165644496 is an apocalyptic number.

165644496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165644496 is an abundant number, since it is smaller than the sum of its proper divisors (297930434).

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

165644496 is a wasteful number, since it uses less digits than its factorization.

165644496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150323 (or 1150314 counting only the distinct ones).

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

The square root of 165644496 is about 12870.2951015119. The cubic root of 165644496 is about 549.1938559132.

The spelling of 165644496 in words is "one hundred sixty-five million, six hundred forty-four thousand, four hundred ninety-six".