11949955117 has 8 divisors (see below), whose sum is σ = 12153212352. Its totient is φ = 11747668800.

The previous prime is 11949955111. The next prime is 11949955159. The reversal of 11949955117 is 71155994911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11949955117 - 2²³ = 11941566509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11949955111) 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, 217884 + ... + 267157.

It is an arithmetic number, because the mean of its divisors is an integer number (1519151544).

Almost surely, 2^11949955117 is an apocalyptic number.

It is an amenable number.

11949955117 is a deficient number, since it is larger than the sum of its proper divisors (203257235).

11949955117 is an equidigital number, since it uses as much as digits as its factorization.

11949955117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485459.

The product of its digits is 510300, while the sum is 52.

The spelling of 11949955117 in words is "eleven billion, nine hundred forty-nine million, nine hundred fifty-five thousand, one hundred seventeen".