161313443654445 has 24 divisors (see below), whose sum is σ = 279610340021376. Its totient is φ = 86033722455648.

The previous prime is 161313443654371. The next prime is 161313443654513. The reversal of 161313443654445 is 544456344313161.

161313443654445 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 13 + 4 + 43 + 6 + 544 + 45 = 666.

161313443654445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161313443654445 - 2¹³ = 161313443646253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161313443654391 and 161313443654400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40345392 + ... + 44163078.

It is an arithmetic number, because the mean of its divisors is an integer number (11650430834224).

Almost surely, 2^{161313443654445} is an apocalyptic number.

161313443654445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161313443654445 is a deficient number, since it is larger than the sum of its proper divisors (118296896366931).

161313443654445 is a wasteful number, since it uses less digits than its factorization.

161313443654445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756681 (or 4756678 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 54.

The spelling of 161313443654445 in words is "one hundred sixty-one trillion, three hundred thirteen billion, four hundred forty-three million, six hundred fifty-four thousand, four hundred forty-five".