667231535225 has 12 divisors (see below), whose sum is σ = 828325840896. Its totient is φ = 533166688080.

The previous prime is 667231535209. The next prime is 667231535233. The reversal of 667231535225 is 522535132766.

It is not a de Polignac number, because 667231535225 - 2⁴ = 667231535209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667231535225.

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, 15441497 + ... + 15484646.

It is an arithmetic number, because the mean of its divisors is an integer number (69027153408).

Almost surely, 2^667231535225 is an apocalyptic number.

It is an amenable number.

667231535225 is a deficient number, since it is larger than the sum of its proper divisors (161094305671).

667231535225 is a wasteful number, since it uses less digits than its factorization.

667231535225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30927016 (or 30927011 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 47.

The spelling of 667231535225 in words is "six hundred sixty-seven billion, two hundred thirty-one million, five hundred thirty-five thousand, two hundred twenty-five".