12511496352 has 96 divisors (see below), whose sum is σ = 34650504000. Its totient is φ = 3941941248.

The previous prime is 12511496321. The next prime is 12511496363. The reversal of 12511496352 is 25369411521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×12511496352² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12511496352.

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, 811338 + ... + 826614.

It is an arithmetic number, because the mean of its divisors is an integer number (360942750).

Almost surely, 2^12511496352 is an apocalyptic number.

12511496352 is a gapful number since it is divisible by the number (12) 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 12511496352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17325252000).

12511496352 is an abundant number, since it is smaller than the sum of its proper divisors (22139007648).

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

12511496352 is a wasteful number, since it uses less digits than its factorization.

12511496352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15758 (or 15750 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The spelling of 12511496352 in words is "twelve billion, five hundred eleven million, four hundred ninety-six thousand, three hundred fifty-two".