194027655043161 has 63 divisors (see below), whose sum is σ = 298200486988047. Its totient is φ = 126186819654240.

The previous prime is 194027655043141. The next prime is 194027655043219. The reversal of 194027655043161 is 161340556720491.

The square root of 194027655043161 is 13929381.

It is a perfect power (a square), and thus also a powerful number.

194027655043161 is a `hidden beast` number, since 1 + 9 + 4 + 0 + 2 + 76 + 5 + 504 + 3 + 1 + 61 = 666.

194027655043161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9349339713561 + 184678315329600 = 3057669^2 + 13589640^2 .

It is not a de Polignac number, because 194027655043161 - 2⁴⁵ = 158843282954329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194027655043098 and 194027655043107.

It is not an unprimeable number, because it can be changed into a prime (194027655043141) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 15419818476 + ... + 15419831058.

Almost surely, 2^{194027655043161} is an apocalyptic number.

194027655043161 is the 13929381-st square number.

194027655043161 is the 6964691-st centered octagonal number.

It is an amenable number.

194027655043161 is a deficient number, since it is larger than the sum of its proper divisors (104172831944886).

194027655043161 is an frugal number, since it uses more digits than its factorization.

194027655043161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25266 (or 12627 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 194027655043161 in words is "one hundred ninety-four trillion, twenty-seven billion, six hundred fifty-five million, forty-three thousand, one hundred sixty-one".