12402569317320 has 640 divisors, whose sum is σ = 52398038246400. Its totient is φ = 2561126252544.

The previous prime is 12402569317223. The next prime is 12402569317351. The reversal of 12402569317320 is 2371396520421.

It is a happy number.

12402569317320 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 2 + 5 + 6 + 9 + 317 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13409976 + ... + 14304984.

It is an arithmetic number, because the mean of its divisors is an integer number (81871934760).

Almost surely, 2^{12402569317320} is an apocalyptic number.

12402569317320 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 12402569317320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26199019123200).

12402569317320 is an abundant number, since it is smaller than the sum of its proper divisors (39995468929080).

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

12402569317320 is a wasteful number, since it uses less digits than its factorization.

12402569317320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895099 (or 895086 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 12402569317320 in words is "twelve trillion, four hundred two billion, five hundred sixty-nine million, three hundred seventeen thousand, three hundred twenty".