648672615180 has 72 divisors (see below), whose sum is σ = 1968247283184. Its totient is φ = 172926000000.

The previous prime is 648672615131. The next prime is 648672615181. The reversal of 648672615180 is 81516276846.

648672615180 is a `hidden beast` number, since 6 + 4 + 8 + 6 + 7 + 2 + 615 + 18 + 0 = 666.

648672615180 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (648672615181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30930 + ... + 1139430.

It is an arithmetic number, because the mean of its divisors is an integer number (27336767822).

Almost surely, 2^648672615180 is an apocalyptic number.

648672615180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

648672615180 is an abundant number, since it is smaller than the sum of its proper divisors (1319574668004).

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

648672615180 is a wasteful number, since it uses less digits than its factorization.

648672615180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111767 (or 1111762 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 648672615180 in words is "six hundred forty-eight billion, six hundred seventy-two million, six hundred fifteen thousand, one hundred eighty".