72302655720 has 64 divisors (see below), whose sum is σ = 217060272000. Its totient is φ = 19267170048.

The previous prime is 72302655713. The next prime is 72302655757. The reversal of 72302655720 is 2755620327.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39340 + ... + 382299.

It is an arithmetic number, because the mean of its divisors is an integer number (3391566750).

Almost surely, 2^72302655720 is an apocalyptic number.

It is an amenable number.

72302655720 is an abundant number, since it is smaller than the sum of its proper divisors (144757616280).

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

72302655720 is a wasteful number, since it uses less digits than its factorization.

72302655720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423082 (or 423078 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 72302655720 in words is "seventy-two billion, three hundred two million, six hundred fifty-five thousand, seven hundred twenty".