15646007056 has 15 divisors (see below), whose sum is σ = 30315108103. Its totient is φ = 7822753360.

The previous prime is 15646007053. The next prime is 15646007057. The reversal of 15646007056 is 65070064651.

The square root of 15646007056 is 125084.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15646007051) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 484701 + ... + 515971.

Almost surely, 2^15646007056 is an apocalyptic number.

15646007056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15646007056 is the 125084-th square number.

It is an amenable number.

15646007056 is a deficient number, since it is larger than the sum of its proper divisors (14669101047).

15646007056 is an frugal number, since it uses more digits than its factorization.

15646007056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62550 (or 31273 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 15646007056 in words is "fifteen billion, six hundred forty-six million, seven thousand, fifty-six".