11656330994 has 48 divisors (see below), whose sum is σ = 22371741216. Its totient is φ = 4541376840.

The previous prime is 11656330951. The next prime is 11656330997. The reversal of 11656330994 is 49903365611.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11656330997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85757 + ... + 175119.

It is an arithmetic number, because the mean of its divisors is an integer number (466077942).

Almost surely, 2^11656330994 is an apocalyptic number.

11656330994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11656330994 is a deficient number, since it is larger than the sum of its proper divisors (10715410222).

11656330994 is an equidigital number, since it uses as much as digits as its factorization.

11656330994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89412 (or 89383 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 11656330994 in words is "eleven billion, six hundred fifty-six million, three hundred thirty thousand, nine hundred ninety-four".