166411332463 has 2 divisors, whose sum is σ = 166411332464. Its totient is φ = 166411332462.

The previous prime is 166411332421. The next prime is 166411332473. The reversal of 166411332463 is 364233114661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166411332463 - 2²⁵ = 166377778031 is a prime.

It is a super-2 number, since 2×166411332463² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166411332413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83205666231 + 83205666232.

It is an arithmetic number, because the mean of its divisors is an integer number (83205666232).

Almost surely, 2^166411332463 is an apocalyptic number.

166411332463 is a deficient number, since it is larger than the sum of its proper divisors (1).

166411332463 is an equidigital number, since it uses as much as digits as its factorization.

166411332463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 40.

The spelling of 166411332463 in words is "one hundred sixty-six billion, four hundred eleven million, three hundred thirty-two thousand, four hundred sixty-three".