12194557703640 has 128 divisors (see below), whose sum is σ = 43775335396800. Its totient is φ = 3001737277440.

The previous prime is 12194557703623. The next prime is 12194557703683. The reversal of 12194557703640 is 4630775549121.

12194557703640 is a `hidden beast` number, since 1 + 2 + 1 + 9 + 4 + 5 + 577 + 0 + 3 + 64 + 0 = 666.

12194557703640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 434265081 + ... + 434293160.

Almost surely, 2^{12194557703640} is an apocalyptic number.

12194557703640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12194557703640 is an abundant number, since it is smaller than the sum of its proper divisors (31580777693160).

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

12194557703640 is a wasteful number, since it uses less digits than its factorization.

12194557703640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868558274 (or 868558264 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 12194557703640 in words is "twelve trillion, one hundred ninety-four billion, five hundred fifty-seven million, seven hundred three thousand, six hundred forty".