243403256160 has 72 divisors (see below), whose sum is σ = 830613616560. Its totient is φ = 64907534592.

The previous prime is 243403256153. The next prime is 243403256177. The reversal of 243403256160 is 61652304342.

243403256160 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 0 + 32 + 5 + 616 + 0 = 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 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, 84513580 + ... + 84516459.

It is an arithmetic number, because the mean of its divisors is an integer number (11536300230).

Almost surely, 2^243403256160 is an apocalyptic number.

243403256160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243403256160 is an abundant number, since it is smaller than the sum of its proper divisors (587210360400).

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

243403256160 is a wasteful number, since it uses less digits than its factorization.

243403256160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169030060 (or 169030049 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 243403256160 in words is "two hundred forty-three billion, four hundred three million, two hundred fifty-six thousand, one hundred sixty".