12565527355040 has 96 divisors (see below), whose sum is σ = 32385624659136. Its totient is φ = 4569165045760.

The previous prime is 12565527355039. The next prime is 12565527355097. The reversal of 12565527355040 is 4055372556521.

It is a self number, because there is not a number n which added to its sum of digits gives 12565527355040.

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, 98078864 + ... + 98206896.

It is an arithmetic number, because the mean of its divisors is an integer number (337350256866).

Almost surely, 2^{12565527355040} is an apocalyptic number.

12565527355040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12565527355040 is an abundant number, since it is smaller than the sum of its proper divisors (19820097304096).

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

12565527355040 is a wasteful number, since it uses less digits than its factorization.

12565527355040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183822 (or 183814 counting only the distinct ones).

The product of its (nonzero) digits is 6300000, while the sum is 50.

The spelling of 12565527355040 in words is "twelve trillion, five hundred sixty-five billion, five hundred twenty-seven million, three hundred fifty-five thousand, forty".