167161557 has 8 divisors (see below), whose sum is σ = 223146784. Its totient is φ = 111308688.

The previous prime is 167161549. The next prime is 167161571. The reversal of 167161557 is 755161761.

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

It is not a de Polignac number, because 167161557 - 2³ = 167161549 is a prime.

It is a super-2 number, since 2×167161557² = 55885972277328498, 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 (167161537) 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, 30103 + ... + 35220.

It is an arithmetic number, because the mean of its divisors is an integer number (27893348).

Almost surely, 2^167161557 is an apocalyptic number.

It is an amenable number.

167161557 is a deficient number, since it is larger than the sum of its proper divisors (55985227).

167161557 is an equidigital number, since it uses as much as digits as its factorization.

167161557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66179.

The product of its digits is 44100, while the sum is 39.

The square root of 167161557 is about 12929.0973002758. The cubic root of 167161557 is about 550.8653671982.

The spelling of 167161557 in words is "one hundred sixty-seven million, one hundred sixty-one thousand, five hundred fifty-seven".