19599160009 has 45 divisors (see below), whose sum is σ = 23610139365. Its totient is φ = 16262051520.

The previous prime is 19599159967. The next prime is 19599160033. The reversal of 19599160009 is 90006199591.

The square root of 19599160009 is 139997.

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

It can be written as a sum of positive squares in 4 ways, for example, as 8568279225 + 11030880784 = 92565^2 + 105028^2 .

It is not a de Polignac number, because 19599160009 - 2¹⁷ = 19599028937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19599166009) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 220215237 + ... + 220215325.

Almost surely, 2^19599160009 is an apocalyptic number.

19599160009 is the 139997-th square number.

19599160009 is the 69999-th centered octagonal number.

It is an amenable number.

19599160009 is a deficient number, since it is larger than the sum of its proper divisors (4010979356).

19599160009 is an frugal number, since it uses more digits than its factorization.

19599160009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 49.

Multiplying 19599160009 by its sum of digits (49), we get a square (960358840441 = 979979²).

The spelling of 19599160009 in words is "nineteen billion, five hundred ninety-nine million, one hundred sixty thousand, nine".