12295805720 has 64 divisors (see below), whose sum is σ = 30447822240. Its totient is φ = 4431616000.

The previous prime is 12295805699. The next prime is 12295805723. The reversal of 12295805720 is 2750859221.

12295805720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12295805723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73931 + ... + 173370.

Almost surely, 2^12295805720 is an apocalyptic number.

12295805720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12295805720 is an abundant number, since it is smaller than the sum of its proper divisors (18152016520).

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

12295805720 is a wasteful number, since it uses less digits than its factorization.

12295805720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247436 (or 247432 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 12295805720 in words is "twelve billion, two hundred ninety-five million, eight hundred five thousand, seven hundred twenty".