12501530256663 has 48 divisors (see below), whose sum is σ = 21136921767936. Its totient is φ = 6972247788480.

The previous prime is 12501530256661. The next prime is 12501530256737. The reversal of 12501530256663 is 36665203510521.

It is not a de Polignac number, because 12501530256663 - 2¹ = 12501530256661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501530256661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9163545 + ... + 10439042.

It is an arithmetic number, because the mean of its divisors is an integer number (440352536832).

Almost surely, 2^{12501530256663} is an apocalyptic number.

12501530256663 is a deficient number, since it is larger than the sum of its proper divisors (8635391511273).

12501530256663 is a wasteful number, since it uses less digits than its factorization.

12501530256663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19602844 (or 19602841 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 12501530256663 in words is "twelve trillion, five hundred one billion, five hundred thirty million, two hundred fifty-six thousand, six hundred sixty-three".