15506616165151 has 4 divisors (see below), whose sum is σ = 15643842856992. Its totient is φ = 15369389473312.

The previous prime is 15506616165149. The next prime is 15506616165193. The reversal of 15506616165151 is 15156161660551.

15506616165151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15506616165151 - 2¹ = 15506616165149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15506616165095 and 15506616165104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15506616168151) 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, 68613345751 + ... + 68613345976.

It is an arithmetic number, because the mean of its divisors is an integer number (3910960714248).

Almost surely, 2^{15506616165151} is an apocalyptic number.

15506616165151 is a deficient number, since it is larger than the sum of its proper divisors (137226691841).

15506616165151 is a wasteful number, since it uses less digits than its factorization.

15506616165151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137226691840.

The product of its (nonzero) digits is 810000, while the sum is 49.

The spelling of 15506616165151 in words is "fifteen trillion, five hundred six billion, six hundred sixteen million, one hundred sixty-five thousand, one hundred fifty-one".