15151515150156 has 96 divisors (see below), whose sum is σ = 46669907676672. Its totient is φ = 3703960919040.

The previous prime is 15151515150151. The next prime is 15151515150157. The reversal of 15151515150156 is 65105151515151.

It is a happy number.

It is a super-2 number, since 2×15151515150156² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (15151515150151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482270871 + ... + 482302286.

It is an arithmetic number, because the mean of its divisors is an integer number (486144871632).

Almost surely, 2^{15151515150156} is an apocalyptic number.

It is an amenable number.

15151515150156 is an abundant number, since it is smaller than the sum of its proper divisors (31518392526516).

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

15151515150156 is a wasteful number, since it uses less digits than its factorization.

15151515150156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964573199 (or 964573197 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 42.

The spelling of 15151515150156 in words is "fifteen trillion, one hundred fifty-one billion, five hundred fifteen million, one hundred fifty thousand, one hundred fifty-six".