165115907413 has 4 divisors (see below), whose sum is σ = 165131090208. Its totient is φ = 165100724620.

The previous prime is 165115907399. The next prime is 165115907417. The reversal of 165115907413 is 314709511561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314709511561 = 239 ⋅1316776199.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165115907413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 165115907413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165115907417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7575073 + ... + 7596838.

It is an arithmetic number, because the mean of its divisors is an integer number (41282772552).

Almost surely, 2^165115907413 is an apocalyptic number.

It is an amenable number.

165115907413 is a deficient number, since it is larger than the sum of its proper divisors (15182795).

165115907413 is a wasteful number, since it uses less digits than its factorization.

165115907413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15182794.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 165115907413 in words is "one hundred sixty-five billion, one hundred fifteen million, nine hundred seven thousand, four hundred thirteen".