78565466161423 has 8 divisors (see below), whose sum is σ = 80237301216192. Its totient is φ = 76893640664736.

The previous prime is 78565466161421. The next prime is 78565466161453. The reversal of 78565466161423 is 32416166456587.

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

It is a cyclic number.

It is not a de Polignac number, because 78565466161423 - 2¹ = 78565466161421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78565466161421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15660361 + ... + 20059357.

It is an arithmetic number, because the mean of its divisors is an integer number (10029662652024).

Almost surely, 2^{78565466161423} is an apocalyptic number.

78565466161423 is a deficient number, since it is larger than the sum of its proper divisors (1671835054769).

78565466161423 is a wasteful number, since it uses less digits than its factorization.

78565466161423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779041.

The product of its digits is 174182400, while the sum is 64.

The spelling of 78565466161423 in words is "seventy-eight trillion, five hundred sixty-five billion, four hundred sixty-six million, one hundred sixty-one thousand, four hundred twenty-three".