163887916379 has 8 divisors (see below), whose sum is σ = 178806305088. Its totient is φ = 148972775560.

The previous prime is 163887916303. The next prime is 163887916393. The reversal of 163887916379 is 973619788361.

163887916379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 163887916379 - 2⁸ = 163887916123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163887916279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705857 + ... + 908850.

It is an arithmetic number, because the mean of its divisors is an integer number (22350788136).

Almost surely, 2^163887916379 is an apocalyptic number.

163887916379 is a deficient number, since it is larger than the sum of its proper divisors (14918388709).

163887916379 is a wasteful number, since it uses less digits than its factorization.

163887916379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623945.

The product of its digits is 82301184, while the sum is 68.

The spelling of 163887916379 in words is "one hundred sixty-three billion, eight hundred eighty-seven million, nine hundred sixteen thousand, three hundred seventy-nine".