124060664721 has 16 divisors (see below), whose sum is σ = 189156539264. Its totient is φ = 70849914624.

The previous prime is 124060664701. The next prime is 124060664747. The reversal of 124060664721 is 127466060421.

It is not a de Polignac number, because 124060664721 - 2⁶ = 124060664657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124060664721.

It is not an unprimeable number, because it can be changed into a prime (124060664701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1709176 + ... + 1780281.

It is an arithmetic number, because the mean of its divisors is an integer number (11822283704).

Almost surely, 2^124060664721 is an apocalyptic number.

It is an amenable number.

124060664721 is a deficient number, since it is larger than the sum of its proper divisors (65095874543).

124060664721 is a wasteful number, since it uses less digits than its factorization.

124060664721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491160.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 124060664721 in words is "one hundred twenty-four billion, sixty million, six hundred sixty-four thousand, seven hundred twenty-one".