15564796199459 has 16 divisors (see below), whose sum is σ = 17748234852768. Its totient is φ = 13522249108992.

The previous prime is 15564796199453. The next prime is 15564796199501. The reversal of 15564796199459 is 95499169746551.

It is a de Polignac number, because none of the positive numbers 2^k-15564796199459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15564796199453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41659709 + ... + 42031665.

It is an arithmetic number, because the mean of its divisors is an integer number (1109264678298).

Almost surely, 2^{15564796199459} is an apocalyptic number.

15564796199459 is a deficient number, since it is larger than the sum of its proper divisors (2183438653309).

15564796199459 is a wasteful number, since it uses less digits than its factorization.

15564796199459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561334.

The product of its digits is 3306744000, while the sum is 80.

The spelling of 15564796199459 in words is "fifteen trillion, five hundred sixty-four billion, seven hundred ninety-six million, one hundred ninety-nine thousand, four hundred fifty-nine".