12566070521240 has 64 divisors (see below), whose sum is σ = 28297486092960. Its totient is φ = 5022193674240.

The previous prime is 12566070521239. The next prime is 12566070521293. The reversal of 12566070521240 is 4212507066521.

It is a super-2 number, since 2×12566070521240² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 324375152 + ... + 324413888.

Almost surely, 2^{12566070521240} is an apocalyptic number.

12566070521240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12566070521240 is an abundant number, since it is smaller than the sum of its proper divisors (15731415571720).

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

12566070521240 is a wasteful number, since it uses less digits than its factorization.

12566070521240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372 (or 45368 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

Adding to 12566070521240 its reverse (4212507066521), we get a palindrome (16778577587761).

The spelling of 12566070521240 in words is "twelve trillion, five hundred sixty-six billion, seventy million, five hundred twenty-one thousand, two hundred forty".