167661655 has 32 divisors (see below), whose sum is σ = 234943488. Its totient is φ = 112492800.

The previous prime is 167661629. The next prime is 167661677. The reversal of 167661655 is 556166761.

It is not a de Polignac number, because 167661655 - 2⁵ = 167661623 is a prime.

It is a super-2 number, since 2×167661655² = 56220861114678050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538950 + ... + 539260.

It is an arithmetic number, because the mean of its divisors is an integer number (7341984).

Almost surely, 2^167661655 is an apocalyptic number.

167661655 is a deficient number, since it is larger than the sum of its proper divisors (67281833).

167661655 is a wasteful number, since it uses less digits than its factorization.

167661655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its digits is 226800, while the sum is 43.

The square root of 167661655 is about 12948.4228769376. The cubic root of 167661655 is about 551.4141624358.

The spelling of 167661655 in words is "one hundred sixty-seven million, six hundred sixty-one thousand, six hundred fifty-five".