194740583656 has 8 divisors (see below), whose sum is σ = 365138594370. Its totient is φ = 97370291824.

The previous prime is 194740583623. The next prime is 194740583683. The reversal of 194740583656 is 656385047491.

It can be written as a sum of positive squares in only one way, i.e., 121389528100 + 73351055556 = 348410^2 + 270834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 194740583656.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12171286471 + ... + 12171286486.

Almost surely, 2^194740583656 is an apocalyptic number.

It is an amenable number.

194740583656 is a deficient number, since it is larger than the sum of its proper divisors (170398010714).

194740583656 is a wasteful number, since it uses less digits than its factorization.

194740583656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24342572963 (or 24342572959 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 194740583656 in words is "one hundred ninety-four billion, seven hundred forty million, five hundred eighty-three thousand, six hundred fifty-six".