165063456 has 72 divisors (see below), whose sum is σ = 489827520. Its totient is φ = 52626816.

The previous prime is 165063449. The next prime is 165063461. The reversal of 165063456 is 654360561.

165063456 is a `hidden beast` number, since 16 + 5 + 0 + 634 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 165063456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5836 + ... + 19083.

It is an arithmetic number, because the mean of its divisors is an integer number (6803160).

Almost surely, 2^165063456 is an apocalyptic number.

165063456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165063456 is an abundant number, since it is smaller than the sum of its proper divisors (324764064).

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

165063456 is a wasteful number, since it uses less digits than its factorization.

165063456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24958 (or 24947 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 165063456 is about 12847.7023626795. The cubic root of 165063456 is about 548.5509581275.

The spelling of 165063456 in words is "one hundred sixty-five million, sixty-three thousand, four hundred fifty-six".