11968556803 has 16 divisors (see below), whose sum is σ = 13716550656. Its totient is φ = 10230161760.

The previous prime is 11968556731. The next prime is 11968556813. The reversal of 11968556803 is 30865586911.

It is a de Polignac number, because none of the positive numbers 2^k-11968556803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11968556813) 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, 5111413 + ... + 5113753.

It is an arithmetic number, because the mean of its divisors is an integer number (857284416).

Almost surely, 2^11968556803 is an apocalyptic number.

11968556803 is a deficient number, since it is larger than the sum of its proper divisors (1747993853).

11968556803 is an equidigital number, since it uses as much as digits as its factorization.

11968556803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 11968556803 in words is "eleven billion, nine hundred sixty-eight million, five hundred fifty-six thousand, eight hundred three".