163705451823375 has 384 divisors, whose sum is σ = 349958116085760. Its totient is φ = 66499804800000.

The previous prime is 163705451823367. The next prime is 163705451823437. The reversal of 163705451823375 is 573328154507361.

It is not a de Polignac number, because 163705451823375 - 2³ = 163705451823367 is a prime.

It is a super-2 number, since 2×163705451823375² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 4528361550 + ... + 4528397700.

It is an arithmetic number, because the mean of its divisors is an integer number (911349260640).

Almost surely, 2^{163705451823375} is an apocalyptic number.

163705451823375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163705451823375 is an abundant number, since it is smaller than the sum of its proper divisors (186252664262385).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163705451823375 is a wasteful number, since it uses less digits than its factorization.

163705451823375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36520 (or 36499 counting only the distinct ones).

The product of its (nonzero) digits is 63504000, while the sum is 60.

The spelling of 163705451823375 in words is "one hundred sixty-three trillion, seven hundred five billion, four hundred fifty-one million, eight hundred twenty-three thousand, three hundred seventy-five".