11521415215332 has 72 divisors (see below), whose sum is σ = 31772157580800. Its totient is φ = 3491230000320.

The previous prime is 11521415215313. The next prime is 11521415215339. The reversal of 11521415215332 is 23351251412511.

11521415215332 is a `hidden beast` number, since 1 + 1 + 5 + 21 + 415 + 215 + 3 + 3 + 2 = 666.

It is a super-3 number, since 3×11521415215332³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11521415215339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12872238 + ... + 13738170.

It is an arithmetic number, because the mean of its divisors is an integer number (441279966400).

Almost surely, 2^{11521415215332} is an apocalyptic number.

11521415215332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11521415215332 is an abundant number, since it is smaller than the sum of its proper divisors (20250742365468).

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

11521415215332 is a wasteful number, since it uses less digits than its factorization.

11521415215332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899553 (or 899548 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

Adding to 11521415215332 its reverse (23351251412511), we get a palindrome (34872666627843).

The spelling of 11521415215332 in words is "eleven trillion, five hundred twenty-one billion, four hundred fifteen million, two hundred fifteen thousand, three hundred thirty-two".