12236351520 has 96 divisors (see below), whose sum is σ = 38593376640. Its totient is φ = 3258890240.

The previous prime is 12236351513. The next prime is 12236351531. The reversal of 12236351520 is 2515363221.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 372565 + ... + 404075.

It is an arithmetic number, because the mean of its divisors is an integer number (402014340).

Almost surely, 2^12236351520 is an apocalyptic number.

12236351520 is a gapful number since it is divisible by the number (10) 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 12236351520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19296688320).

12236351520 is an abundant number, since it is smaller than the sum of its proper divisors (26357025120).

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

12236351520 is a wasteful number, since it uses less digits than its factorization.

12236351520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32338 (or 32330 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 12236351520 in words is "twelve billion, two hundred thirty-six million, three hundred fifty-one thousand, five hundred twenty".