667173052 has 48 divisors (see below), whose sum is σ = 1499484672. Its totient is φ = 252457920.

The previous prime is 667172999. The next prime is 667173107. The reversal of 667173052 is 250371766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31474 + ... + 48217.

It is an arithmetic number, because the mean of its divisors is an integer number (31239264).

Almost surely, 2^667173052 is an apocalyptic number.

It is an amenable number.

667173052 is an abundant number, since it is smaller than the sum of its proper divisors (832311620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667173052 is a wasteful number, since it uses less digits than its factorization.

667173052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79738 (or 79736 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 667173052 is about 25829.6932231105. The cubic root of 667173052 is about 873.8015929251.

The spelling of 667173052 in words is "six hundred sixty-seven million, one hundred seventy-three thousand, fifty-two".