163812848644 has 27 divisors (see below), whose sum is σ = 302583026151. Its totient is φ = 77588274600.

The previous prime is 163812848629. The next prime is 163812848659. The reversal of 163812848644 is 446848218361.

The square root of 163812848644 is 404738.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (163812848629) and next prime (163812848659).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15374719 + ... + 15385369.

Almost surely, 2^163812848644 is an apocalyptic number.

163812848644 is the 404738-th square number.

It is an amenable number.

163812848644 is a deficient number, since it is larger than the sum of its proper divisors (138770177507).

163812848644 is an frugal number, since it uses more digits than its factorization.

163812848644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21344 (or 10672 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 55.

The spelling of 163812848644 in words is "one hundred sixty-three billion, eight hundred twelve million, eight hundred forty-eight thousand, six hundred forty-four".