12565145464356 has 24 divisors (see below), whose sum is σ = 29318931663840. Its totient is φ = 4188344833792.

The previous prime is 12565145464351. The next prime is 12565145464423. The reversal of 12565145464356 is 65346454156521.

It is a junction number, because it is equal to n+sod(n) for n = 12565145464296 and 12565145464305.

It is not an unprimeable number, because it can be changed into a prime (12565145464351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3190221 + ... + 5942036.

It is an arithmetic number, because the mean of its divisors is an integer number (1221622152660).

Almost surely, 2^{12565145464356} is an apocalyptic number.

It is an amenable number.

12565145464356 is an abundant number, since it is smaller than the sum of its proper divisors (16753786199484).

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

12565145464356 is a wasteful number, since it uses less digits than its factorization.

12565145464356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9246923 (or 9246921 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 57.

The spelling of 12565145464356 in words is "twelve trillion, five hundred sixty-five billion, one hundred forty-five million, four hundred sixty-four thousand, three hundred fifty-six".