667110538 has 8 divisors (see below), whose sum is σ = 1044173088. Its totient is φ = 319052844.

The previous prime is 667110517. The next prime is 667110541. The reversal of 667110538 is 835011766.

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

It is a junction number, because it is equal to n+sod(n) for n = 667110497 and 667110506.

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, 7251156 + ... + 7251247.

It is an arithmetic number, because the mean of its divisors is an integer number (130521636).

Almost surely, 2^667110538 is an apocalyptic number.

667110538 is a deficient number, since it is larger than the sum of its proper divisors (377062550).

667110538 is a wasteful number, since it uses less digits than its factorization.

667110538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14502428.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 667110538 is about 25828.4830758603. The cubic root of 667110538 is about 873.7743003864.

The spelling of 667110538 in words is "six hundred sixty-seven million, one hundred ten thousand, five hundred thirty-eight".