16515048456 has 48 divisors (see below), whose sum is σ = 44764656300. Its totient is φ = 5500536192.

The previous prime is 16515048437. The next prime is 16515048461. The reversal of 16515048456 is 65484051561.

16515048456 is a `hidden beast` number, since 1 + 6 + 5 + 150 + 48 + 456 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13085072100 + 3429976356 = 114390^2 + 58566^2 .

It is a super-3 number, since 3×16515048456³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3651 + ... + 181778.

Almost surely, 2^16515048456 is an apocalyptic number.

It is an amenable number.

16515048456 is an abundant number, since it is smaller than the sum of its proper divisors (28249607844).

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

16515048456 is a wasteful number, since it uses less digits than its factorization.

16515048456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186678 (or 186671 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 16515048456 in words is "sixteen billion, five hundred fifteen million, forty-eight thousand, four hundred fifty-six".