165040543110 has 32 divisors (see below), whose sum is σ = 399942915840. Its totient is φ = 43583521248.

The previous prime is 165040543021. The next prime is 165040543127. The reversal of 165040543110 is 11345040561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26702500 + ... + 26708679.

It is an arithmetic number, because the mean of its divisors is an integer number (12498216120).

Almost surely, 2^165040543110 is an apocalyptic number.

165040543110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165040543110 is an abundant number, since it is smaller than the sum of its proper divisors (234902372730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165040543110 is a wasteful number, since it uses less digits than its factorization.

165040543110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53411292.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 165040543110 its reverse (11345040561), we get a palindrome (176385583671).

The spelling of 165040543110 in words is "one hundred sixty-five billion, forty million, five hundred forty-three thousand, one hundred ten".