15505100008 has 16 divisors (see below), whose sum is σ = 29073776580. Its totient is φ = 7752092928.

The previous prime is 15505099999. The next prime is 15505100029. The reversal of 15505100008 is 80000150551.

It can be written as a sum of positive squares in 2 ways, for example, as 14404320324 + 1100779684 = 120018^2 + 33178^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118960 + ... + 212512.

Almost surely, 2^15505100008 is an apocalyptic number.

It is an amenable number.

15505100008 is a deficient number, since it is larger than the sum of its proper divisors (13568676572).

15505100008 is a wasteful number, since it uses less digits than its factorization.

15505100008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114276 (or 114272 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 15505100008 its reverse (80000150551), we get a palindrome (95505250559).

The spelling of 15505100008 in words is "fifteen billion, five hundred five million, one hundred thousand, eight".