166523026434037 has 16 divisors (see below), whose sum is σ = 204952356203392. Its totient is φ = 131753878776000.

The previous prime is 166523026433969. The next prime is 166523026434053. The reversal of 166523026434037 is 730434620325661.

It is not a de Polignac number, because 166523026434037 - 2³⁵ = 166488666695669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166523026434097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16326763 + ... + 24486919.

It is an arithmetic number, because the mean of its divisors is an integer number (12809522262712).

Almost surely, 2^{166523026434037} is an apocalyptic number.

It is an amenable number.

166523026434037 is a deficient number, since it is larger than the sum of its proper divisors (38429329769355).

166523026434037 is a wasteful number, since it uses less digits than its factorization.

166523026434037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8384428.

The product of its (nonzero) digits is 13063680, while the sum is 52.

Adding to 166523026434037 its reverse (730434620325661), we get a palindrome (896957646759698).

The spelling of 166523026434037 in words is "one hundred sixty-six trillion, five hundred twenty-three billion, twenty-six million, four hundred thirty-four thousand, thirty-seven".