163861035375 has 16 divisors (see below), whose sum is σ = 272664763488. Its totient is φ = 87392552000.

The previous prime is 163861035311. The next prime is 163861035383. The reversal of 163861035375 is 573530168361.

It is not a de Polignac number, because 163861035375 - 2⁶ = 163861035311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218481006 + ... + 218481755.

It is an arithmetic number, because the mean of its divisors is an integer number (17041547718).

Almost surely, 2^163861035375 is an apocalyptic number.

163861035375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163861035375 is a deficient number, since it is larger than the sum of its proper divisors (108803728113).

163861035375 is an equidigital number, since it uses as much as digits as its factorization.

163861035375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436962779 (or 436962769 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 48.

The spelling of 163861035375 in words is "one hundred sixty-three billion, eight hundred sixty-one million, thirty-five thousand, three hundred seventy-five".