668051737752 has 64 divisors (see below), whose sum is σ = 1940009760000. Its totient is φ = 187742874240.

The previous prime is 668051737747. The next prime is 668051737783. The reversal of 668051737752 is 257737150866.

668051737752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 668051737692 and 668051737701.

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, 32584002 + ... + 32604497.

It is an arithmetic number, because the mean of its divisors is an integer number (30312652500).

Almost surely, 2^668051737752 is an apocalyptic number.

It is an amenable number.

668051737752 is an abundant number, since it is smaller than the sum of its proper divisors (1271958022248).

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

668051737752 is a wasteful number, since it uses less digits than its factorization.

668051737752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65188576 (or 65188572 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 57.

The spelling of 668051737752 in words is "six hundred sixty-eight billion, fifty-one million, seven hundred thirty-seven thousand, seven hundred fifty-two".