591666966963 has 8 divisors (see below), whose sum is σ = 876543654800. Its totient is φ = 394444644624.

The previous prime is 591666966949. The next prime is 591666966967. The reversal of 591666966963 is 369669666195.

It is not a de Polignac number, because 591666966963 - 2²⁰ = 591665918387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 591666966891 and 591666966900.

It is not an unprimeable number, because it can be changed into a prime (591666966967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10956795658 + ... + 10956795711.

It is an arithmetic number, because the mean of its divisors is an integer number (109567956850).

Almost surely, 2^591666966963 is an apocalyptic number.

591666966963 is a deficient number, since it is larger than the sum of its proper divisors (284876687837).

591666966963 is a wasteful number, since it uses less digits than its factorization.

591666966963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21913591378 (or 21913591372 counting only the distinct ones).

The product of its digits is 510183360, while the sum is 72.

The spelling of 591666966963 in words is "five hundred ninety-one billion, six hundred sixty-six million, nine hundred sixty-six thousand, nine hundred sixty-three".