230721646032 has 60 divisors (see below), whose sum is σ = 679684389280. Its totient is φ = 72859466304.

The previous prime is 230721645991. The next prime is 230721646037. The reversal of 230721646032 is 230646127032.

230721646032 is a `hidden beast` number, since 2 + 3 + 0 + 7 + 2 + 1 + 646 + 0 + 3 + 2 = 666.

230721646032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230721646037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42161308 + ... + 42166779.

Almost surely, 2^230721646032 is an apocalyptic number.

It is an amenable number.

230721646032 is an abundant number, since it is smaller than the sum of its proper divisors (448962743248).

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

230721646032 is a wasteful number, since it uses less digits than its factorization.

230721646032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84328120 (or 84328111 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 230721646032 in words is "two hundred thirty billion, seven hundred twenty-one million, six hundred forty-six thousand, thirty-two".