12168952251 has 16 divisors (see below), whose sum is σ = 16505068800. Its totient is φ = 7973288928.

The previous prime is 12168952231. The next prime is 12168952273. The reversal of 12168952251 is 15225986121.

It is not a de Polignac number, because 12168952251 - 2¹¹ = 12168950203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12168952231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19285 + ... + 157193.

It is an arithmetic number, because the mean of its divisors is an integer number (1031566800).

Almost surely, 2^12168952251 is an apocalyptic number.

12168952251 is a deficient number, since it is larger than the sum of its proper divisors (4336116549).

12168952251 is a wasteful number, since it uses less digits than its factorization.

12168952251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138418.

The product of its digits is 86400, while the sum is 42.

The spelling of 12168952251 in words is "twelve billion, one hundred sixty-eight million, nine hundred fifty-two thousand, two hundred fifty-one".