165003901220116 has 24 divisors (see below), whose sum is σ = 332381959300160. Its totient is φ = 70207209767232.

The previous prime is 165003901220087. The next prime is 165003901220161. The reversal of 165003901220116 is 611022109300561.

165003901220116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21197825145 + ... + 21197832928.

Almost surely, 2^{165003901220116} is an apocalyptic number.

It is an amenable number.

165003901220116 is an abundant number, since it is smaller than the sum of its proper divisors (167378058080044).

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

165003901220116 is a wasteful number, since it uses less digits than its factorization.

165003901220116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42395658223 (or 42395658221 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 165003901220116 in words is "one hundred sixty-five trillion, three billion, nine hundred one million, two hundred twenty thousand, one hundred sixteen".