165003901220115 has 64 divisors (see below), whose sum is σ = 299120300075520. Its totient is φ = 86277469749120.

The previous prime is 165003901220087. The next prime is 165003901220161. The reversal of 165003901220115 is 511022109300561.

It is a happy number.

165003901220115 is a `hidden beast` number, since 1 + 6 + 50 + 0 + 390 + 1 + 2 + 201 + 15 = 666.

It is not a de Polignac number, because 165003901220115 - 2¹¹ = 165003901218067 is a prime.

It is a super-2 number, since 2×165003901220115² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 165003901220115.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30105249 + ... + 35161538.

It is an arithmetic number, because the mean of its divisors is an integer number (4673754688680).

Almost surely, 2^{165003901220115} is an apocalyptic number.

165003901220115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165003901220115 is a deficient number, since it is larger than the sum of its proper divisors (134116398855405).

165003901220115 is a wasteful number, since it uses less digits than its factorization.

165003901220115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65267169 (or 65267163 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 165003901220115 in words is "one hundred sixty-five trillion, three billion, nine hundred one million, two hundred twenty thousand, one hundred fifteen".