667336847398 has 40 divisors (see below), whose sum is σ = 1102202579520. Its totient is φ = 302950833120.

The previous prime is 667336847371. The next prime is 667336847431. The reversal of 667336847398 is 893748633766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3388683 + ... + 3580201.

It is an arithmetic number, because the mean of its divisors is an integer number (27555064488).

Almost surely, 2^667336847398 is an apocalyptic number.

667336847398 is a deficient number, since it is larger than the sum of its proper divisors (434865732122).

667336847398 is an equidigital number, since it uses as much as digits as its factorization.

667336847398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191634 (or 191595 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 70.

The spelling of 667336847398 in words is "six hundred sixty-seven billion, three hundred thirty-six million, eight hundred forty-seven thousand, three hundred ninety-eight".