667107100994 has 8 divisors (see below), whose sum is σ = 1000664814540. Its totient is φ = 333552162816.

The previous prime is 667107100967. The next prime is 667107101051. The reversal of 667107100994 is 499001701766.

It can be written as a sum of positive squares in 2 ways, for example, as 522374790025 + 144732310969 = 722755^2 + 380437^2 .

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

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, 79442 + ... + 1157810.

Almost surely, 2^667107100994 is an apocalyptic number.

667107100994 is a deficient number, since it is larger than the sum of its proper divisors (333557713546).

667107100994 is a wasteful number, since it uses less digits than its factorization.

667107100994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387684.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 667107100994 in words is "six hundred sixty-seven billion, one hundred seven million, one hundred thousand, nine hundred ninety-four".