165651165060 has 96 divisors (see below), whose sum is σ = 508041797760. Its totient is φ = 40141559808.

The previous prime is 165651165059. The next prime is 165651165073. The reversal of 165651165060 is 60561156561.

165651165060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2770474 + ... + 2829633.

It is an arithmetic number, because the mean of its divisors is an integer number (5292102060).

Almost surely, 2^165651165060 is an apocalyptic number.

165651165060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165651165060 is an abundant number, since it is smaller than the sum of its proper divisors (342390632700).

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

165651165060 is a wasteful number, since it uses less digits than its factorization.

165651165060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600165 (or 5600163 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 165651165060 in words is "one hundred sixty-five billion, six hundred fifty-one million, one hundred sixty-five thousand, sixty".