668933402962 has 32 divisors (see below), whose sum is σ = 1098406197504. Its totient is φ = 303008850000.

The previous prime is 668933402959. The next prime is 668933402983. The reversal of 668933402962 is 269204339866.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 668933402897 and 668933402906.

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, 59449837 + ... + 59461087.

It is an arithmetic number, because the mean of its divisors is an integer number (34325193672).

Almost surely, 2^668933402962 is an apocalyptic number.

668933402962 is a deficient number, since it is larger than the sum of its proper divisors (429472794542).

668933402962 is a wasteful number, since it uses less digits than its factorization.

668933402962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20374.

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 668933402962 in words is "six hundred sixty-eight billion, nine hundred thirty-three million, four hundred two thousand, nine hundred sixty-two".