161313443654455 has 8 divisors (see below), whose sum is σ = 193576240726704. Its totient is φ = 129050682696000.

The previous prime is 161313443654371. The next prime is 161313443654513. The reversal of 161313443654455 is 554456344313161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161313443654455 - 2⁷ = 161313443654327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161313443654396 and 161313443654405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029860 + ... + 18076150.

It is an arithmetic number, because the mean of its divisors is an integer number (24197030090838).

Almost surely, 2^{161313443654455} is an apocalyptic number.

161313443654455 is a deficient number, since it is larger than the sum of its proper divisors (32262797072249).

161313443654455 is a wasteful number, since it uses less digits than its factorization.

161313443654455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18056897.

The product of its digits is 31104000, while the sum is 55.

The spelling of 161313443654455 in words is "one hundred sixty-one trillion, three hundred thirteen billion, four hundred forty-three million, six hundred fifty-four thousand, four hundred fifty-five".