12625655240 has 64 divisors (see below), whose sum is σ = 31037843520. Its totient is φ = 4584096000.

The previous prime is 12625655239. The next prime is 12625655257. The reversal of 12625655240 is 4255652621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12625655194 and 12625655203.

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, 269135 + ... + 312545.

It is an arithmetic number, because the mean of its divisors is an integer number (484966305).

Almost surely, 2^12625655240 is an apocalyptic number.

12625655240 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 12625655240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15518921760).

12625655240 is an abundant number, since it is smaller than the sum of its proper divisors (18412188280).

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

12625655240 is a wasteful number, since it uses less digits than its factorization.

12625655240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44094 (or 44090 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 12625655240 in words is "twelve billion, six hundred twenty-five million, six hundred fifty-five thousand, two hundred forty".