11497722118 has 16 divisors (see below), whose sum is σ = 17376270336. Its totient is φ = 5705769160.

The previous prime is 11497722113. The next prime is 11497722157. The reversal of 11497722118 is 81122779411.

It is a super-2 number, since 2×11497722118² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11497722113) 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, 135255 + ... + 203197.

It is an arithmetic number, because the mean of its divisors is an integer number (1086016896).

Almost surely, 2^11497722118 is an apocalyptic number.

11497722118 is a deficient number, since it is larger than the sum of its proper divisors (5878548218).

11497722118 is a wasteful number, since it uses less digits than its factorization.

11497722118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68579.

The product of its digits is 56448, while the sum is 43.

The spelling of 11497722118 in words is "eleven billion, four hundred ninety-seven million, seven hundred twenty-two thousand, one hundred eighteen".