166101929423 has 2 divisors, whose sum is σ = 166101929424. Its totient is φ = 166101929422.

The previous prime is 166101929387. The next prime is 166101929429. The reversal of 166101929423 is 324929101661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166101929423 - 2¹⁸ = 166101667279 is a prime.

It is a super-2 number, since 2×166101929423² (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 (166101929429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83050964711 + 83050964712.

It is an arithmetic number, because the mean of its divisors is an integer number (83050964712).

Almost surely, 2^166101929423 is an apocalyptic number.

166101929423 is a deficient number, since it is larger than the sum of its proper divisors (1).

166101929423 is an equidigital number, since it uses as much as digits as its factorization.

166101929423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 166101929423 in words is "one hundred sixty-six billion, one hundred one million, nine hundred twenty-nine thousand, four hundred twenty-three".