166104631 has 16 divisors (see below), whose sum is σ = 217992960. Its totient is φ = 122618880.

The previous prime is 166104619. The next prime is 166104667. The reversal of 166104631 is 136401661.

It is a cyclic number.

It is not a de Polignac number, because 166104631 - 2⁵ = 166104599 is a prime.

It is a super-2 number, since 2×166104631² = 55181496879292322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166104631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166104131) 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, 55306 + ... + 58231.

It is an arithmetic number, because the mean of its divisors is an integer number (13624560).

Almost surely, 2^166104631 is an apocalyptic number.

166104631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

166104631 is a deficient number, since it is larger than the sum of its proper divisors (51888329).

166104631 is a wasteful number, since it uses less digits than its factorization.

166104631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113574.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 166104631 is about 12888.1585573735. The cubic root of 166104631 is about 549.7019111984.

The spelling of 166104631 in words is "one hundred sixty-six million, one hundred four thousand, six hundred thirty-one".