15559490228 has 12 divisors (see below), whose sum is σ = 27306246660. Its totient is φ = 7757705472.

The previous prime is 15559490213. The next prime is 15559490257. The reversal of 15559490228 is 82209495551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7336265104 + 8223225124 = 85652^2 + 90682^2 .

It is a congruent number.

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, 5508323 + ... + 5511146.

It is an arithmetic number, because the mean of its divisors is an integer number (2275520555).

Almost surely, 2^15559490228 is an apocalyptic number.

It is an amenable number.

15559490228 is a deficient number, since it is larger than the sum of its proper divisors (11746756432).

15559490228 is a wasteful number, since it uses less digits than its factorization.

15559490228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019826 (or 11019824 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 15559490228 in words is "fifteen billion, five hundred fifty-nine million, four hundred ninety thousand, two hundred twenty-eight".