166632231235601 has 4 divisors (see below), whose sum is σ = 166641331370304. Its totient is φ = 166623131100900.

The previous prime is 166632231235571. The next prime is 166632231235621. The reversal of 166632231235601 is 106532132236661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166632231235601 - 2⁶ = 166632231235537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166632231235621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550039885 + ... + 4550076506.

It is an arithmetic number, because the mean of its divisors is an integer number (41660332842576).

Almost surely, 2^{166632231235601} is an apocalyptic number.

It is an amenable number.

166632231235601 is a deficient number, since it is larger than the sum of its proper divisors (9100134703).

166632231235601 is an equidigital number, since it uses as much as digits as its factorization.

166632231235601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9100134702.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 166632231235601 in words is "one hundred sixty-six trillion, six hundred thirty-two billion, two hundred thirty-one million, two hundred thirty-five thousand, six hundred one".