72559551042 has 24 divisors (see below), whose sum is σ = 171504393840. Its totient is φ = 21987742680.

The previous prime is 72559551037. The next prime is 72559551143. The reversal of 72559551042 is 24015595527.

72559551042 is a `hidden beast` number, since 7 + 2 + 5 + 5 + 95 + 510 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183230992 + ... + 183231387.

It is an arithmetic number, because the mean of its divisors is an integer number (7146016410).

Almost surely, 2^72559551042 is an apocalyptic number.

72559551042 is an abundant number, since it is smaller than the sum of its proper divisors (98944842798).

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

72559551042 is a wasteful number, since it uses less digits than its factorization.

72559551042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366462398 (or 366462395 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 72559551042 in words is "seventy-two billion, five hundred fifty-nine million, five hundred fifty-one thousand, forty-two".