163939853707 has 8 divisors (see below), whose sum is σ = 197220876800. Its totient is φ = 133124091624.

The previous prime is 163939853683. The next prime is 163939853729. The reversal of 163939853707 is 707358939361.

163939853707 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 163939853707 - 2²³ = 163931465099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163939853747) 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, 616315107 + ... + 616315372.

It is an arithmetic number, because the mean of its divisors is an integer number (24652609600).

Almost surely, 2^163939853707 is an apocalyptic number.

163939853707 is a deficient number, since it is larger than the sum of its proper divisors (33281023093).

163939853707 is a wasteful number, since it uses less digits than its factorization.

163939853707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232630505.

The product of its (nonzero) digits is 25719120, while the sum is 61.

The spelling of 163939853707 in words is "one hundred sixty-three billion, nine hundred thirty-nine million, eight hundred fifty-three thousand, seven hundred seven".