163840813054 has 4 divisors (see below), whose sum is σ = 245761219584. Its totient is φ = 81920406526.

The previous prime is 163840813051. The next prime is 163840813057. The reversal of 163840813054 is 450318048361.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (163840813051) and next prime (163840813057).

It is a self number, because there is not a number n which added to its sum of digits gives 163840813054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163840813051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40960203262 + ... + 40960203265.

It is an arithmetic number, because the mean of its divisors is an integer number (61440304896).

Almost surely, 2^163840813054 is an apocalyptic number.

163840813054 is a deficient number, since it is larger than the sum of its proper divisors (81920406530).

163840813054 is an equidigital number, since it uses as much as digits as its factorization.

163840813054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81920406529.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 163840813054 in words is "one hundred sixty-three billion, eight hundred forty million, eight hundred thirteen thousand, fifty-four".