72061055400 has 96 divisors (see below), whose sum is σ = 225438919200. Its totient is φ = 19039968000.

The previous prime is 72061055399. The next prime is 72061055419. The reversal of 72061055400 is 455016027.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 485526 + ... + 616325.

It is an arithmetic number, because the mean of its divisors is an integer number (2348322075).

Almost surely, 2^72061055400 is an apocalyptic number.

It is an amenable number.

72061055400 is an abundant number, since it is smaller than the sum of its proper divisors (153377863800).

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

72061055400 is a wasteful number, since it uses less digits than its factorization.

72061055400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101979 (or 1101970 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 72061055400 in words is "seventy-two billion, sixty-one million, fifty-five thousand, four hundred".