166615148823 has 16 divisors (see below), whose sum is σ = 224212280160. Its totient is φ = 110047579776.

The previous prime is 166615148813. The next prime is 166615148857. The reversal of 166615148823 is 328841516661.

It is a happy number.

It is not a de Polignac number, because 166615148823 - 2³⁰ = 165541406999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166615148803) 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, 5569261 + ... + 5599097.

It is an arithmetic number, because the mean of its divisors is an integer number (14013267510).

Almost surely, 2^166615148823 is an apocalyptic number.

166615148823 is a deficient number, since it is larger than the sum of its proper divisors (57597131337).

166615148823 is a wasteful number, since it uses less digits than its factorization.

166615148823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47026.

The product of its digits is 1658880, while the sum is 51.

The spelling of 166615148823 in words is "one hundred sixty-six billion, six hundred fifteen million, one hundred forty-eight thousand, eight hundred twenty-three".