15115501066106 has 48 divisors (see below), whose sum is σ = 26649092773800. Its totient is φ = 6410763491328.

The previous prime is 15115501066103. The next prime is 15115501066111. The reversal of 15115501066106 is 60166010551151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15103288827025 + 12212239081 = 3886295^2 + 110509^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15115501066106.

It is not an unprimeable number, because it can be changed into a prime (15115501066103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129879350 + ... + 129995678.

Almost surely, 2^{15115501066106} is an apocalyptic number.

15115501066106 is a deficient number, since it is larger than the sum of its proper divisors (11533591707694).

15115501066106 is a wasteful number, since it uses less digits than its factorization.

15115501066106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130111 (or 130104 counting only the distinct ones).

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

The spelling of 15115501066106 in words is "fifteen trillion, one hundred fifteen billion, five hundred one million, sixty-six thousand, one hundred six".