12656503263 has 8 divisors (see below), whose sum is σ = 17457246000. Its totient is φ = 8146714688.

The previous prime is 12656503187. The next prime is 12656503271. The reversal of 12656503263 is 36230565621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12656503263 - 2¹⁶ = 12656437727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12656503283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72738438 + ... + 72738611.

It is an arithmetic number, because the mean of its divisors is an integer number (2182155750).

Almost surely, 2^12656503263 is an apocalyptic number.

12656503263 is a deficient number, since it is larger than the sum of its proper divisors (4800742737).

12656503263 is a wasteful number, since it uses less digits than its factorization.

12656503263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145477081.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 12656503263 in words is "twelve billion, six hundred fifty-six million, five hundred three thousand, two hundred sixty-three".