166170135 has 16 divisors (see below), whose sum is σ = 266729184. Its totient is φ = 88338432.

The previous prime is 166170131. The next prime is 166170157. The reversal of 166170135 is 531071661.

It is not a de Polignac number, because 166170135 - 2² = 166170131 is a prime.

It is a super-2 number, since 2×166170135² = 55225027531836450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166170131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13002 + ... + 22391.

It is an arithmetic number, because the mean of its divisors is an integer number (16670574).

Almost surely, 2^166170135 is an apocalyptic number.

166170135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166170135 is a deficient number, since it is larger than the sum of its proper divisors (100559049).

166170135 is a wasteful number, since it uses less digits than its factorization.

166170135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35714.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 166170135 is about 12890.6995543299. The cubic root of 166170135 is about 549.7741607228.

The spelling of 166170135 in words is "one hundred sixty-six million, one hundred seventy thousand, one hundred thirty-five".