11559920694 has 128 divisors (see below), whose sum is σ = 27325734912. Its totient is φ = 3192618240.

The previous prime is 11559920653. The next prime is 11559920719. The reversal of 11559920694 is 49602995511.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54786249 + ... + 54786459.

It is an arithmetic number, because the mean of its divisors is an integer number (213482304).

Almost surely, 2^11559920694 is an apocalyptic number.

11559920694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11559920694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13662867456).

11559920694 is an abundant number, since it is smaller than the sum of its proper divisors (15765814218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11559920694 is a wasteful number, since it uses less digits than its factorization.

11559920694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 11559920694 in words is "eleven billion, five hundred fifty-nine million, nine hundred twenty thousand, six hundred ninety-four".