31466630166161 has 4 divisors (see below), whose sum is σ = 31474610548032. Its totient is φ = 31458649784292.

The previous prime is 31466630166109. The next prime is 31466630166197. The reversal of 31466630166161 is 16166103666413.

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 31466630166161 - 2²⁶ = 31466563057297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31466630166661) 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, 3990185021 + ... + 3990192906.

It is an arithmetic number, because the mean of its divisors is an integer number (7868652637008).

Almost surely, 2^{31466630166161} is an apocalyptic number.

It is an amenable number.

31466630166161 is a deficient number, since it is larger than the sum of its proper divisors (7980381871).

31466630166161 is an equidigital number, since it uses as much as digits as its factorization.

31466630166161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980381870.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 31466630166161 in words is "thirty-one trillion, four hundred sixty-six billion, six hundred thirty million, one hundred sixty-six thousand, one hundred sixty-one".