12207572640 has 96 divisors (see below), whose sum is σ = 42726519360. Its totient is φ = 3255351552.

The previous prime is 12207572633. The next prime is 12207572719. The reversal of 12207572640 is 4627570221.

It is a happy number.

12207572640 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 7 + 5 + 7 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 12207572595 and 12207572604.

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, 1408594 + ... + 1417233.

It is an arithmetic number, because the mean of its divisors is an integer number (445067910).

Almost surely, 2^12207572640 is an apocalyptic number.

12207572640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12207572640 is an abundant number, since it is smaller than the sum of its proper divisors (30518946720).

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

12207572640 is a wasteful number, since it uses less digits than its factorization.

12207572640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825851 (or 2825837 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 12207572640 in words is "twelve billion, two hundred seven million, five hundred seventy-two thousand, six hundred forty".