667750136 has 16 divisors (see below), whose sum is σ = 1317928200. Its totient is φ = 316302624.

The previous prime is 667750129. The next prime is 667750151. The reversal of 667750136 is 631057766.

It is a junction number, because it is equal to n+sod(n) for n = 667750093 and 667750102.

It is a congruent number.

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, 2196395 + ... + 2196698.

Almost surely, 2^667750136 is an apocalyptic number.

It is an amenable number.

667750136 is a deficient number, since it is larger than the sum of its proper divisors (650178064).

667750136 is a wasteful number, since it uses less digits than its factorization.

667750136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393118 (or 4393114 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 667750136 is about 25840.8617503364. The cubic root of 667750136 is about 874.0534574141.

The spelling of 667750136 in words is "six hundred sixty-seven million, seven hundred fifty thousand, one hundred thirty-six".