12652445340 has 72 divisors (see below), whose sum is σ = 38466748320. Its totient is φ = 3366278784.

The previous prime is 12652445317. The next prime is 12652445411. The reversal of 12652445340 is 4354425621.

12652445340 is a `hidden beast` number, since 12 + 65 + 244 + 5 + 340 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12652445295 and 12652445304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1039 + ... + 159078.

Almost surely, 2^12652445340 is an apocalyptic number.

12652445340 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 12652445340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19233374160).

12652445340 is an abundant number, since it is smaller than the sum of its proper divisors (25814302980).

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

12652445340 is a wasteful number, since it uses less digits than its factorization.

12652445340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160571 (or 160566 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 12652445340 in words is "twelve billion, six hundred fifty-two million, four hundred forty-five thousand, three hundred forty".