15994865504284 has 12 divisors (see below), whose sum is σ = 28893950588608. Its totient is φ = 7739451050400.

The previous prime is 15994865504281. The next prime is 15994865504309. The reversal of 15994865504284 is 48240556849951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15994865504281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64495425297 + ... + 64495425544.

Almost surely, 2^{15994865504284} is an apocalyptic number.

It is an amenable number.

15994865504284 is a deficient number, since it is larger than the sum of its proper divisors (12899085084324).

15994865504284 is a wasteful number, since it uses less digits than its factorization.

15994865504284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128990850876 (or 128990850874 counting only the distinct ones).

The product of its (nonzero) digits is 497664000, while the sum is 70.

The spelling of 15994865504284 in words is "fifteen trillion, nine hundred ninety-four billion, eight hundred sixty-five million, five hundred four thousand, two hundred eighty-four".