166111432 has 16 divisors (see below), whose sum is σ = 316738800. Its totient is φ = 81647760.

The previous prime is 166111417. The next prime is 166111441. The reversal of 166111432 is 234111661.

It is a junction number, because it is equal to n+sod(n) for n = 166111397 and 166111406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175494 + ... + 176437.

It is an arithmetic number, because the mean of its divisors is an integer number (19796175).

Almost surely, 2^166111432 is an apocalyptic number.

It is an amenable number.

166111432 is a deficient number, since it is larger than the sum of its proper divisors (150627368).

166111432 is a wasteful number, since it uses less digits than its factorization.

166111432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351996 (or 351992 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 166111432 is about 12888.4224015199. The cubic root of 166111432 is about 549.7094134409.

The spelling of 166111432 in words is "one hundred sixty-six million, one hundred eleven thousand, four hundred thirty-two".