15797590664443 has 12 divisors (see below), whose sum is σ = 18655576080240. Its totient is φ = 13103992250640.

The previous prime is 15797590664333. The next prime is 15797590664491. The reversal of 15797590664443 is 34446609579751.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-15797590664443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15797590664543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1174186128 + ... + 1174199581.

It is an arithmetic number, because the mean of its divisors is an integer number (1554631340020).

Almost surely, 2^{15797590664443} is an apocalyptic number.

15797590664443 is a deficient number, since it is larger than the sum of its proper divisors (2857985415797).

15797590664443 is an equidigital number, since it uses as much as digits as its factorization.

15797590664443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348385778 (or 2348385747 counting only the distinct ones).

The product of its (nonzero) digits is 685843200, while the sum is 70.

The spelling of 15797590664443 in words is "fifteen trillion, seven hundred ninety-seven billion, five hundred ninety million, six hundred sixty-four thousand, four hundred forty-three".