15505106056 has 16 divisors (see below), whose sum is σ = 31714989840. Its totient is φ = 7047775440.

The previous prime is 15505106051. The next prime is 15505106069. The reversal of 15505106056 is 65060150551.

It is not an unprimeable number, because it can be changed into a prime (15505106051) 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, 88097106 + ... + 88097281.

It is an arithmetic number, because the mean of its divisors is an integer number (1982186865).

Almost surely, 2^15505106056 is an apocalyptic number.

It is an amenable number.

15505106056 is an abundant number, since it is smaller than the sum of its proper divisors (16209883784).

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

15505106056 is a wasteful number, since it uses less digits than its factorization.

15505106056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176194404 (or 176194400 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 15505106056 in words is "fifteen billion, five hundred five million, one hundred six thousand, fifty-six".