167660431 has 8 divisors (see below), whose sum is σ = 177747584. Its totient is φ = 157865760.

The previous prime is 167660429. The next prime is 167660459. The reversal of 167660431 is 134066761.

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

It is a cyclic number.

It is not a de Polignac number, because 167660431 - 2¹ = 167660429 is a prime.

It is a super-2 number, since 2×167660431² = 56220040246211522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167660491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71940 + ... + 74233.

It is an arithmetic number, because the mean of its divisors is an integer number (22218448).

Almost surely, 2^167660431 is an apocalyptic number.

167660431 is a deficient number, since it is larger than the sum of its proper divisors (10087153).

167660431 is a wasteful number, since it uses less digits than its factorization.

167660431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146241.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 167660431 is about 12948.3756124079. The cubic root of 167660431 is about 551.4128205814.

The spelling of 167660431 in words is "one hundred sixty-seven million, six hundred sixty thousand, four hundred thirty-one".