165536486400 has 132 divisors (see below), whose sum is σ = 547106963072. Its totient is φ = 44143042560.

The previous prime is 165536486399. The next prime is 165536486447. The reversal of 165536486400 is 4684635561.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 165536486400.

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, 1000912 + ... + 1154511.

Almost surely, 2^165536486400 is an apocalyptic number.

165536486400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165536486400 is an abundant number, since it is smaller than the sum of its proper divisors (381570476672).

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

165536486400 is a wasteful number, since it uses less digits than its factorization.

165536486400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155456 (or 2155433 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 165536486400 in words is "one hundred sixty-five billion, five hundred thirty-six million, four hundred eighty-six thousand, four hundred".