166232434 has 4 divisors (see below), whose sum is σ = 249348654. Its totient is φ = 83116216.

The previous prime is 166232419. The next prime is 166232543. The reversal of 166232434 is 434232661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 112254025 + 53978409 = 10595^2 + 7347^2 .

It is a super-2 number, since 2×166232434² = 55266444227128712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 166232396 and 166232405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41558107 + ... + 41558110.

Almost surely, 2^166232434 is an apocalyptic number.

166232434 is a deficient number, since it is larger than the sum of its proper divisors (83116220).

166232434 is an equidigital number, since it uses as much as digits as its factorization.

166232434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83116219.

The product of its digits is 20736, while the sum is 31.

The square root of 166232434 is about 12893.1157599705. The cubic root of 166232434 is about 549.8428575859.

The spelling of 166232434 in words is "one hundred sixty-six million, two hundred thirty-two thousand, four hundred thirty-four".