166461479 has 16 divisors (see below), whose sum is σ = 176256000. Its totient is φ = 156975840.

The previous prime is 166461469. The next prime is 166461509. The reversal of 166461479 is 974164661.

It is not a de Polignac number, because 166461479 - 2²⁴ = 149684263 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 (166461469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463502 + ... + 463860.

It is an arithmetic number, because the mean of its divisors is an integer number (11016000).

Almost surely, 2^166461479 is an apocalyptic number.

166461479 is a deficient number, since it is larger than the sum of its proper divisors (9794521).

166461479 is a wasteful number, since it uses less digits than its factorization.

166461479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its digits is 217728, while the sum is 44.

The square root of 166461479 is about 12901.9951557889. The cubic root of 166461479 is about 550.0952771580.

The spelling of 166461479 in words is "one hundred sixty-six million, four hundred sixty-one thousand, four hundred seventy-nine".