12465340020 has 192 divisors, whose sum is σ = 44779445760. Its totient is φ = 2819764224.

The previous prime is 12465340001. The next prime is 12465340021. The reversal of 12465340020 is 2004356421.

12465340020 is a `hidden beast` number, since 1 + 2 + 4 + 653 + 4 + 0 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465340021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 349662 + ... + 383658.

It is an arithmetic number, because the mean of its divisors is an integer number (233226280).

Almost surely, 2^12465340020 is an apocalyptic number.

12465340020 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 12465340020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22389722880).

12465340020 is an abundant number, since it is smaller than the sum of its proper divisors (32314105740).

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

12465340020 is a wasteful number, since it uses less digits than its factorization.

12465340020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34119 (or 34111 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12465340020 its reverse (2004356421), we get a palindrome (14469696441).

The spelling of 12465340020 in words is "twelve billion, four hundred sixty-five million, three hundred forty thousand, twenty".