660111622624444 has 48 divisors (see below), whose sum is σ = 1167117928546752. Its totient is φ = 326667440095232.

The previous prime is 660111622624429. The next prime is 660111622624451. The reversal of 660111622624444 is 444426226111066.

It is a super-3 number, since 3×660111622624444³ (a number of 45 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 15 ways as a sum of consecutive naturals, for example, 414145464 + ... + 415736320.

It is an arithmetic number, because the mean of its divisors is an integer number (24314956844724).

Almost surely, 2^{660111622624444} is an apocalyptic number.

It is an amenable number.

660111622624444 is a deficient number, since it is larger than the sum of its proper divisors (507006305922308).

660111622624444 is a wasteful number, since it uses less digits than its factorization.

660111622624444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593702 (or 1593700 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 49.

The spelling of 660111622624444 in words is "six hundred sixty trillion, one hundred eleven billion, six hundred twenty-two million, six hundred twenty-four thousand, four hundred forty-four".