11535797616 has 80 divisors (see below), whose sum is σ = 34169313024. Its totient is φ = 3285176832.

The previous prime is 11535797569. The next prime is 11535797629. The reversal of 11535797616 is 61679753511.

It is a happy number.

It is a super-2 number, since 2×11535797616² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47236 + ... + 159068.

Almost surely, 2^11535797616 is an apocalyptic number.

11535797616 is a gapful number since it is divisible by the number (16) 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 11535797616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17084656512).

11535797616 is an abundant number, since it is smaller than the sum of its proper divisors (22633515408).

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

11535797616 is a wasteful number, since it uses less digits than its factorization.

11535797616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112158 (or 112152 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 51.

The spelling of 11535797616 in words is "eleven billion, five hundred thirty-five million, seven hundred ninety-seven thousand, six hundred sixteen".