15151616165 has 16 divisors (see below), whose sum is σ = 20806845312. Its totient is φ = 10375936704.

The previous prime is 15151616147. The next prime is 15151616171. The reversal of 15151616165 is 56161615151.

It is a happy number.

It is not a de Polignac number, because 15151616165 - 2³⁰ = 14077874341 is a prime.

It is a super-2 number, since 2×15151616165² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259439 + ... + 312428.

It is an arithmetic number, because the mean of its divisors is an integer number (1300427832).

Almost surely, 2^15151616165 is an apocalyptic number.

It is an amenable number.

15151616165 is a deficient number, since it is larger than the sum of its proper divisors (5655229147).

15151616165 is an equidigital number, since it uses as much as digits as its factorization.

15151616165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572636.

The product of its digits is 27000, while the sum is 38.

The spelling of 15151616165 in words is "fifteen billion, one hundred fifty-one million, six hundred sixteen thousand, one hundred sixty-five".