667370400370 has 8 divisors (see below), whose sum is σ = 1201266720684. Its totient is φ = 266948160144.

The previous prime is 667370400343. The next prime is 667370400407. The reversal of 667370400370 is 73004073766.

It can be written as a sum of positive squares in 2 ways, for example, as 664549409601 + 2820990769 = 815199^2 + 53113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×667370400370² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33368520009 + ... + 33368520028.

Almost surely, 2^667370400370 is an apocalyptic number.

667370400370 is a deficient number, since it is larger than the sum of its proper divisors (533896320314).

667370400370 is a wasteful number, since it uses less digits than its factorization.

667370400370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66737040044.

The product of its (nonzero) digits is 444528, while the sum is 43.

The spelling of 667370400370 in words is "six hundred sixty-seven billion, three hundred seventy million, four hundred thousand, three hundred seventy".