11535220416 has 56 divisors (see below), whose sum is σ = 32126610880. Its totient is φ = 3642700032.

The previous prime is 11535220379. The next prime is 11535220483. The reversal of 11535220416 is 61402253511.

It is a super-2 number, since 2×11535220416² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577386 + ... + 1584681.

It is an arithmetic number, because the mean of its divisors is an integer number (573689480).

Almost surely, 2^11535220416 is an apocalyptic number.

11535220416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11535220416 is an abundant number, since it is smaller than the sum of its proper divisors (20591390464).

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

11535220416 is a wasteful number, since it uses less digits than its factorization.

11535220416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162101 (or 3162091 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 11535220416 its reverse (61402253511), we get a palindrome (72937473927).

The spelling of 11535220416 in words is "eleven billion, five hundred thirty-five million, two hundred twenty thousand, four hundred sixteen".