165548861093 has 16 divisors (see below), whose sum is σ = 213515775360. Its totient is φ = 124550865600.

The previous prime is 165548861081. The next prime is 165548861113. The reversal of 165548861093 is 390168845561.

It is not a de Polignac number, because 165548861093 - 2⁴ = 165548861077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165548861063) 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, 37066478 + ... + 37070943.

It is an arithmetic number, because the mean of its divisors is an integer number (13344735960).

Almost surely, 2^165548861093 is an apocalyptic number.

It is an amenable number.

165548861093 is a deficient number, since it is larger than the sum of its proper divisors (47966914267).

165548861093 is a wasteful number, since it uses less digits than its factorization.

165548861093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74137468.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 165548861093 in words is "one hundred sixty-five billion, five hundred forty-eight million, eight hundred sixty-one thousand, ninety-three".