166157411 has 16 divisors (see below), whose sum is σ = 193729536. Its totient is φ = 139574016.

The previous prime is 166157401. The next prime is 166157419. The reversal of 166157411 is 114751661.

It is a cyclic number.

It is not a de Polignac number, because 166157411 - 2¹⁸ = 165895267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166157419) 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, 71510 + ... + 73796.

It is an arithmetic number, because the mean of its divisors is an integer number (12108096).

Almost surely, 2^166157411 is an apocalyptic number.

166157411 is a deficient number, since it is larger than the sum of its proper divisors (27572125).

166157411 is a wasteful number, since it uses less digits than its factorization.

166157411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its digits is 5040, while the sum is 32.

The square root of 166157411 is about 12890.2060107665. The cubic root of 166157411 is about 549.7601279064.

The spelling of 166157411 in words is "one hundred sixty-six million, one hundred fifty-seven thousand, four hundred eleven".