166097023 has 2 divisors, whose sum is σ = 166097024. Its totient is φ = 166097022.

The previous prime is 166096999. The next prime is 166097059. The reversal of 166097023 is 320790661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166097023 - 2¹³ = 166088831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166097023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166094023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83048511 + 83048512.

It is an arithmetic number, because the mean of its divisors is an integer number (83048512).

Almost surely, 2^166097023 is an apocalyptic number.

166097023 is a deficient number, since it is larger than the sum of its proper divisors (1).

166097023 is an equidigital number, since it uses as much as digits as its factorization.

166097023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 166097023 is about 12887.8633993382. The cubic root of 166097023 is about 549.6935185045.

It can be divided in two parts, 16609 and 7023, that added together give a palindrome (23632).

The spelling of 166097023 in words is "one hundred sixty-six million, ninety-seven thousand, twenty-three".