167161556 has 6 divisors (see below), whose sum is σ = 292532730. Its totient is φ = 83580776.

The previous prime is 167161549. The next prime is 167161571. The reversal of 167161556 is 655161761.

It can be written as a sum of positive squares in only one way, i.e., 94400656 + 72760900 = 9716^2 + 8530^2 .

It is a super-2 number, since 2×167161556² = 55885971608682272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20895191 + ... + 20895198.

It is an arithmetic number, because the mean of its divisors is an integer number (48755455).

Almost surely, 2^167161556 is an apocalyptic number.

It is an amenable number.

167161556 is a deficient number, since it is larger than the sum of its proper divisors (125371174).

167161556 is a wasteful number, since it uses less digits than its factorization.

167161556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41790393 (or 41790391 counting only the distinct ones).

The product of its digits is 37800, while the sum is 38.

The square root of 167161556 is about 12929.0972616034. The cubic root of 167161556 is about 550.8653660997.

The spelling of 167161556 in words is "one hundred sixty-seven million, one hundred sixty-one thousand, five hundred fifty-six".