163461805438 has 8 divisors (see below), whose sum is σ = 250409574432. Its totient is φ = 79991947296.

The previous prime is 163461805387. The next prime is 163461805487. The reversal of 163461805438 is 834508164361.

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

It is a junction number, because it is equal to n+sod(n) for n = 163461805391 and 163461805400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869477595 + ... + 869477782.

It is an arithmetic number, because the mean of its divisors is an integer number (31301196804).

Almost surely, 2^163461805438 is an apocalyptic number.

163461805438 is a deficient number, since it is larger than the sum of its proper divisors (86947768994).

163461805438 is a wasteful number, since it uses less digits than its factorization.

163461805438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738955426.

The product of its (nonzero) digits is 1658880, while the sum is 49.

Adding to 163461805438 its reverse (834508164361), we get a palindrome (997969969799).

The spelling of 163461805438 in words is "one hundred sixty-three billion, four hundred sixty-one million, eight hundred five thousand, four hundred thirty-eight".