15449495616 has 63 divisors (see below), whose sum is σ = 44291741871. Its totient is φ = 5148837504.

The previous prime is 15449495597. The next prime is 15449495627. The reversal of 15449495616 is 61659494451.

The square root of 15449495616 is 124296.

It is a perfect power (a square), and thus also a powerful number.

15449495616 is a `hidden beast` number, since 1 + 5 + 4 + 494 + 95 + 61 + 6 = 666.

Its product of digits (4665600) is a multiple of the sum of its prime divisors (5184).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2980515 + ... + 2985693.

Almost surely, 2^15449495616 is an apocalyptic number.

15449495616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15449495616 is the 124296-th square number.

It is an amenable number.

15449495616 is an abundant number, since it is smaller than the sum of its proper divisors (28842246255).

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

15449495616 is an frugal number, since it uses more digits than its factorization.

15449495616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376 (or 5184 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The spelling of 15449495616 in words is "fifteen billion, four hundred forty-nine million, four hundred ninety-five thousand, six hundred sixteen".