166461311 has 8 divisors (see below), whose sum is σ = 167731200. Its totient is φ = 165196152.

The previous prime is 166461301. The next prime is 166461329. The reversal of 166461311 is 113164661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166461311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166461301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99266 + ... + 100928.

It is an arithmetic number, because the mean of its divisors is an integer number (20966400).

Almost surely, 2^166461311 is an apocalyptic number.

166461311 is a deficient number, since it is larger than the sum of its proper divisors (1269889).

166461311 is a wasteful number, since it uses less digits than its factorization.

166461311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its digits is 2592, while the sum is 29.

The square root of 166461311 is about 12901.9886451663. The cubic root of 166461311 is about 550.0950920981.

The spelling of 166461311 in words is "one hundred sixty-six million, four hundred sixty-one thousand, three hundred eleven".