165566010115 has 32 divisors (see below), whose sum is σ = 217708710912. Its totient is φ = 119874816000.

The previous prime is 165566010101. The next prime is 165566010121. The reversal of 165566010115 is 511010665561.

It is not a de Polignac number, because 165566010115 - 2¹⁷ = 165565879043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19156195 + ... + 19164835.

It is an arithmetic number, because the mean of its divisors is an integer number (6803397216).

Almost surely, 2^165566010115 is an apocalyptic number.

165566010115 is a deficient number, since it is larger than the sum of its proper divisors (52142700797).

165566010115 is a wasteful number, since it uses less digits than its factorization.

165566010115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10171.

The product of its (nonzero) digits is 27000, while the sum is 37.

Adding to 165566010115 its reverse (511010665561), we get a palindrome (676576675676).

The spelling of 165566010115 in words is "one hundred sixty-five billion, five hundred sixty-six million, ten thousand, one hundred fifteen".