166881234 has 32 divisors (see below), whose sum is σ = 368210304. Its totient is φ = 50094720.

The previous prime is 166881229. The next prime is 166881241. The reversal of 166881234 is 432188661.

It is a super-2 number, since 2×166881234² = 55698692522725512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 166881192 and 166881201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22894 + ... + 29289.

It is an arithmetic number, because the mean of its divisors is an integer number (11506572).

Almost surely, 2^166881234 is an apocalyptic number.

166881234 is an abundant number, since it is smaller than the sum of its proper divisors (201329070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166881234 is a wasteful number, since it uses less digits than its factorization.

166881234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52242.

The product of its digits is 55296, while the sum is 39.

The square root of 166881234 is about 12918.2519715324. The cubic root of 166881234 is about 550.5572687845.

The spelling of 166881234 in words is "one hundred sixty-six million, eight hundred eighty-one thousand, two hundred thirty-four".