668250741312 has 2240 divisors, whose sum is σ = 2829612994560. Its totient is φ = 150493593600.

The previous prime is 668250741289. The next prime is 668250741341. The reversal of 668250741312 is 213147052866.

668250741312 is a `hidden beast` number, since 6 + 6 + 8 + 2 + 507 + 4 + 131 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 9154119708 + ... + 9154119780.

Almost surely, 2^668250741312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 668250741312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414806497280).

668250741312 is an abundant number, since it is smaller than the sum of its proper divisors (2161362253248).

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

668250741312 is a wasteful number, since it uses less digits than its factorization.

668250741312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 668250741312 in words is "six hundred sixty-eight billion, two hundred fifty million, seven hundred forty-one thousand, three hundred twelve".