660406503050 has 24 divisors (see below), whose sum is σ = 1403835538656. Its totient is φ = 226425086640.

The previous prime is 660406502999. The next prime is 660406503173. The reversal of 660406503050 is 50305604066.

It is a super-2 number, since 2×660406503050² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 660406503050.

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, 943437512 + ... + 943438211.

It is an arithmetic number, because the mean of its divisors is an integer number (58493147444).

Almost surely, 2^660406503050 is an apocalyptic number.

660406503050 is an abundant number, since it is smaller than the sum of its proper divisors (743429035606).

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

660406503050 is a wasteful number, since it uses less digits than its factorization.

660406503050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886875742 (or 1886875737 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 660406503050 in words is "six hundred sixty billion, four hundred six million, five hundred three thousand, fifty".