12561164302 has 8 divisors (see below), whose sum is σ = 18842265000. Its totient is φ = 6280409304.

The previous prime is 12561164281. The next prime is 12561164321. The reversal of 12561164302 is 20346116521.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43449 + ... + 164347.

It is an arithmetic number, because the mean of its divisors is an integer number (2355283125).

Almost surely, 2^12561164302 is an apocalyptic number.

12561164302 is a deficient number, since it is larger than the sum of its proper divisors (6281100698).

12561164302 is a wasteful number, since it uses less digits than its factorization.

12561164302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172850.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12561164302 in words is "twelve billion, five hundred sixty-one million, one hundred sixty-four thousand, three hundred two".