12365644020 has 48 divisors (see below), whose sum is σ = 34653769920. Its totient is φ = 3294651136.

The previous prime is 12365643977. The next prime is 12365644037. The reversal of 12365644020 is 2044656321.

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, 18825 + ... + 158384.

It is an arithmetic number, because the mean of its divisors is an integer number (721953540).

Almost surely, 2^12365644020 is an apocalyptic number.

12365644020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12365644020 is an abundant number, since it is smaller than the sum of its proper divisors (22288125900).

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

12365644020 is a wasteful number, since it uses less digits than its factorization.

12365644020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178384 (or 178382 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 12365644020 in words is "twelve billion, three hundred sixty-five million, six hundred forty-four thousand, twenty".