12625651620 has 144 divisors (see below), whose sum is σ = 40622662080. Its totient is φ = 3165177600.

The previous prime is 12625651589. The next prime is 12625651627. The reversal of 12625651620 is 2615652621.

12625651620 is a `hidden beast` number, since 1 + 2 + 6 + 25 + 6 + 5 + 1 + 620 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12625651627) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433930 + ... + 462110.

It is an arithmetic number, because the mean of its divisors is an integer number (282101820).

Almost surely, 2^12625651620 is an apocalyptic number.

12625651620 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 12625651620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20311331040).

12625651620 is an abundant number, since it is smaller than the sum of its proper divisors (27997010460).

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

12625651620 is a wasteful number, since it uses less digits than its factorization.

12625651620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28346 (or 28341 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12625651620 in words is "twelve billion, six hundred twenty-five million, six hundred fifty-one thousand, six hundred twenty".