12169819091664 has 180 divisors, whose sum is σ = 38245941123936. Its totient is φ = 3744559518336.

The previous prime is 12169819091587. The next prime is 12169819091701. The reversal of 12169819091664 is 46619091896121.

12169819091664 is a `hidden beast` number, since 1 + 216 + 98 + 190 + 91 + 6 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8603572 + ... + 9917715.

Almost surely, 2^{12169819091664} is an apocalyptic number.

It is an amenable number.

12169819091664 is an abundant number, since it is smaller than the sum of its proper divisors (26076122032272).

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

12169819091664 is a wasteful number, since it uses less digits than its factorization.

12169819091664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18521336 (or 18521305 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 63.

The spelling of 12169819091664 in words is "twelve trillion, one hundred sixty-nine billion, eight hundred nineteen million, ninety-one thousand, six hundred sixty-four".