163687083257830 has 32 divisors (see below), whose sum is σ = 321445903917600. Its totient is φ = 59518132216320.

The previous prime is 163687083257821. The next prime is 163687083257839. The reversal of 163687083257830 is 38752380786361.

It is an interprime number because it is at equal distance from previous prime (163687083257821) and next prime (163687083257839).

It is a super-2 number, since 2×163687083257830² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163687083257839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54063555 + ... + 57010894.

It is an arithmetic number, because the mean of its divisors is an integer number (10045184497425).

Almost surely, 2^{163687083257830} is an apocalyptic number.

163687083257830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163687083257830 is a deficient number, since it is larger than the sum of its proper divisors (157758820659770).

163687083257830 is a wasteful number, since it uses less digits than its factorization.

163687083257830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111087864.

The product of its (nonzero) digits is 243855360, while the sum is 67.

The spelling of 163687083257830 in words is "one hundred sixty-three trillion, six hundred eighty-seven billion, eighty-three million, two hundred fifty-seven thousand, eight hundred thirty".