60639492240 has 80 divisors (see below), whose sum is σ = 208869369600. Its totient is φ = 16170530688.

The previous prime is 60639492233. The next prime is 60639492281. The reversal of 60639492240 is 4229493606.

60639492240 is a `hidden beast` number, since 6 + 0 + 639 + 4 + 9 + 2 + 2 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 14034760 + ... + 14039079.

It is an arithmetic number, because the mean of its divisors is an integer number (2610867120).

Almost surely, 2^60639492240 is an apocalyptic number.

60639492240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60639492240 is an abundant number, since it is smaller than the sum of its proper divisors (148229877360).

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

60639492240 is a wasteful number, since it uses less digits than its factorization.

60639492240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28073861 (or 28073849 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 60639492240 in words is "sixty billion, six hundred thirty-nine million, four hundred ninety-two thousand, two hundred forty".