667214322752 has 28 divisors (see below), whose sum is σ = 1324095219216. Its totient is φ = 333584031360.

The previous prime is 667214322701. The next prime is 667214322779. The reversal of 667214322752 is 257223412766.

It is a junction number, because it is equal to n+sod(n) for n = 667214322697 and 667214322706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588227 + ... + 1296317.

It is an arithmetic number, because the mean of its divisors is an integer number (47289114972).

Almost surely, 2^667214322752 is an apocalyptic number.

It is an amenable number.

667214322752 is a deficient number, since it is larger than the sum of its proper divisors (656880896464).

667214322752 is a wasteful number, since it uses less digits than its factorization.

667214322752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722826 (or 722816 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 47.

The spelling of 667214322752 in words is "six hundred sixty-seven billion, two hundred fourteen million, three hundred twenty-two thousand, seven hundred fifty-two".