166632031238467 has 2 divisors, whose sum is σ = 166632031238468. Its totient is φ = 166632031238466.

The previous prime is 166632031238447. The next prime is 166632031238473. The reversal of 166632031238467 is 764832130236661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166632031238467 is a prime.

It is not a weakly prime, because it can be changed into another prime (166632031238447) 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 as a sum of consecutive naturals, namely, 83316015619233 + 83316015619234.

It is an arithmetic number, because the mean of its divisors is an integer number (83316015619234).

Almost surely, 2^{166632031238467} is an apocalyptic number.

166632031238467 is a deficient number, since it is larger than the sum of its proper divisors (1).

166632031238467 is an equidigital number, since it uses as much as digits as its factorization.

166632031238467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 58.

The spelling of 166632031238467 in words is "one hundred sixty-six trillion, six hundred thirty-two billion, thirty-one million, two hundred thirty-eight thousand, four hundred sixty-seven".