168332961 has 4 divisors (see below), whose sum is σ = 224443952. Its totient is φ = 112221972.

The previous prime is 168332953. The next prime is 168332971. The reversal of 168332961 is 169233861.

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 not a de Polignac number, because 168332961 - 2³ = 168332953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168332911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28055491 + ... + 28055496.

It is an arithmetic number, because the mean of its divisors is an integer number (56110988).

Almost surely, 2^168332961 is an apocalyptic number.

It is an amenable number.

168332961 is a deficient number, since it is larger than the sum of its proper divisors (56110991).

168332961 is an equidigital number, since it uses as much as digits as its factorization.

168332961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56110990.

The product of its digits is 46656, while the sum is 39.

The square root of 168332961 is about 12974.3192885022. The cubic root of 168332961 is about 552.1491241451.

The spelling of 168332961 in words is "one hundred sixty-eight million, three hundred thirty-two thousand, nine hundred sixty-one".