12271016664 has 96 divisors (see below), whose sum is σ = 33438113280. Its totient is φ = 4065311232.

The previous prime is 12271016651. The next prime is 12271016671. The reversal of 12271016664 is 46661017221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10285252 + ... + 10286444.

It is an arithmetic number, because the mean of its divisors is an integer number (348313680).

Almost surely, 2^12271016664 is an apocalyptic number.

It is an amenable number.

12271016664 is an abundant number, since it is smaller than the sum of its proper divisors (21167096616).

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

12271016664 is a wasteful number, since it uses less digits than its factorization.

12271016664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 12271016664 in words is "twelve billion, two hundred seventy-one million, sixteen thousand, six hundred sixty-four".