165453663200 has 144 divisors (see below), whose sum is σ = 472875296544. Its totient is φ = 55343308800.

The previous prime is 165453663173. The next prime is 165453663217. The reversal of 165453663200 is 2366354561.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130709 + ... + 589908.

It is an arithmetic number, because the mean of its divisors is an integer number (3283856226).

Almost surely, 2^165453663200 is an apocalyptic number.

165453663200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165453663200 is an abundant number, since it is smaller than the sum of its proper divisors (307421633344).

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

165453663200 is a wasteful number, since it uses less digits than its factorization.

165453663200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720685 (or 720672 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 165453663200 in words is "one hundred sixty-five billion, four hundred fifty-three million, six hundred sixty-three thousand, two hundred".