166541632 has 28 divisors (see below), whose sum is σ = 335422240. Its totient is φ = 82025856.

The previous prime is 166541629. The next prime is 166541659. The reversal of 166541632 is 236145661.

It is a super-2 number, since 2×166541632² = 55472230378446848, which contains 22 as substring.

It is a congruent number.

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, 15132 + ... + 23707.

Almost surely, 2^166541632 is an apocalyptic number.

It is an amenable number.

166541632 is an abundant number, since it is smaller than the sum of its proper divisors (168880608).

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

166541632 is an equidigital number, since it uses as much as digits as its factorization.

166541632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38918 (or 38908 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 166541632 is about 12905.1010069662. The cubic root of 166541632 is about 550.1835552630.

The spelling of 166541632 in words is "one hundred sixty-six million, five hundred forty-one thousand, six hundred thirty-two".