5515646456 has 16 divisors (see below), whose sum is σ = 10346184000. Its totient is φ = 2756664064.

The previous prime is 5515646443. The next prime is 5515646467. The reversal of 5515646456 is 6546465155.

It is a self number, because there is not a number n which added to its sum of digits gives 5515646456.

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, 124505 + ... + 162888.

It is an arithmetic number, because the mean of its divisors is an integer number (646636500).

Almost surely, 2^5515646456 is an apocalyptic number.

It is an amenable number.

5515646456 is a deficient number, since it is larger than the sum of its proper divisors (4830537544).

5515646456 is a wasteful number, since it uses less digits than its factorization.

5515646456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289798 (or 289794 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 47.

The square root of 5515646456 is about 74267.3983387058. The cubic root of 5515646456 is about 1766.8464447088.

The spelling of 5515646456 in words is "five billion, five hundred fifteen million, six hundred forty-six thousand, four hundred fifty-six".