72124720558 has 16 divisors (see below), whose sum is σ = 118640194560. Its totient is φ = 32612318200.

The previous prime is 72124720543. The next prime is 72124720567. The reversal of 72124720558 is 85502742127.

It is a super-3 number, since 3×72124720558³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8577988 + ... + 8586391.

It is an arithmetic number, because the mean of its divisors is an integer number (7415012160).

Almost surely, 2^72124720558 is an apocalyptic number.

72124720558 is a deficient number, since it is larger than the sum of its proper divisors (46515474002).

72124720558 is a wasteful number, since it uses less digits than its factorization.

72124720558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17164583.

The product of its (nonzero) digits is 313600, while the sum is 43.

The spelling of 72124720558 in words is "seventy-two billion, one hundred twenty-four million, seven hundred twenty thousand, five hundred fifty-eight".