163941075613 has 12 divisors (see below), whose sum is σ = 190715342400. Its totient is φ = 140514749592.

The previous prime is 163941075593. The next prime is 163941075643. The reversal of 163941075613 is 316570149361.

163941075613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-163941075613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163941075643) 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 11 ways as a sum of consecutive naturals, for example, 1320588 + ... + 1439386.

It is an arithmetic number, because the mean of its divisors is an integer number (15892945200).

Almost surely, 2^163941075613 is an apocalyptic number.

It is an amenable number.

163941075613 is a deficient number, since it is larger than the sum of its proper divisors (26774266787).

163941075613 is a wasteful number, since it uses less digits than its factorization.

163941075613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146976 (or 146969 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 163941075613 in words is "one hundred sixty-three billion, nine hundred forty-one million, seventy-five thousand, six hundred thirteen".