165810635060 has 48 divisors (see below), whose sum is σ = 397991857536. Its totient is φ = 56842741632.

The previous prime is 165810634993. The next prime is 165810635069. The reversal of 165810635060 is 60536018561.

It is a junction number, because it is equal to n+sod(n) for n = 165810634999 and 165810635017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165810635069) 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, 1224074 + ... + 1352766.

It is an arithmetic number, because the mean of its divisors is an integer number (8291497032).

Almost surely, 2^165810635060 is an apocalyptic number.

165810635060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165810635060 is an abundant number, since it is smaller than the sum of its proper divisors (232181222476).

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

165810635060 is a wasteful number, since it uses less digits than its factorization.

165810635060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137912 (or 137910 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 165810635060 in words is "one hundred sixty-five billion, eight hundred ten million, six hundred thirty-five thousand, sixty".