667117517025 has 12 divisors (see below), whose sum is σ = 1102967628272. Its totient is φ = 355796009040.

The previous prime is 667117516987. The next prime is 667117517119. The reversal of 667117517025 is 520715711766.

It is not a de Polignac number, because 667117517025 - 2¹¹ = 667117514977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4447450039 + ... + 4447450188.

Almost surely, 2^667117517025 is an apocalyptic number.

It is an amenable number.

667117517025 is a deficient number, since it is larger than the sum of its proper divisors (435850111247).

667117517025 is a wasteful number, since it uses less digits than its factorization.

667117517025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894900240 (or 8894900235 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 48.

The spelling of 667117517025 in words is "six hundred sixty-seven billion, one hundred seventeen million, five hundred seventeen thousand, twenty-five".