11699234568 has 128 divisors (see below), whose sum is σ = 37168588800. Its totient is φ = 3340104768.

The previous prime is 11699234557. The next prime is 11699234593. The reversal of 11699234568 is 86543299611.

11699234568 is a `hidden beast` number, since 1 + 169 + 9 + 23 + 456 + 8 = 666.

It is a Cunningham number, because it is equal to 108163²-1.

It is a super-2 number, since 2×11699234568² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3026605 + ... + 3030467.

It is an arithmetic number, because the mean of its divisors is an integer number (290379600).

Almost surely, 2^11699234568 is an apocalyptic number.

11699234568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11699234568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18584294400).

11699234568 is an abundant number, since it is smaller than the sum of its proper divisors (25469354232).

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

11699234568 is a wasteful number, since it uses less digits than its factorization.

11699234568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5878 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 11699234568 in words is "eleven billion, six hundred ninety-nine million, two hundred thirty-four thousand, five hundred sixty-eight".