72361494180 has 60 divisors (see below), whose sum is σ = 227000692380. Its totient is φ = 19296398016.

The previous prime is 72361494133. The next prime is 72361494203. The reversal of 72361494180 is 8149416327.

72361494180 is a `hidden beast` number, since 7 + 23 + 61 + 494 + 1 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28921764096 + 43439730084 = 170064^2 + 208422^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22332175 + ... + 22335414.

It is an arithmetic number, because the mean of its divisors is an integer number (3783344873).

Almost surely, 2^72361494180 is an apocalyptic number.

It is an amenable number.

72361494180 is an abundant number, since it is smaller than the sum of its proper divisors (154639198200).

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

72361494180 is a wasteful number, since it uses less digits than its factorization.

72361494180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44667610 (or 44667599 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 72361494180 in words is "seventy-two billion, three hundred sixty-one million, four hundred ninety-four thousand, one hundred eighty".