163961283215 has 8 divisors (see below), whose sum is σ = 196871436960. Its totient is φ = 131090428512.

The previous prime is 163961283173. The next prime is 163961283293. The reversal of 163961283215 is 512382169361.

163961283215 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 163961283215 - 2⁶ = 163961283151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163961283215.

It is a congruent number.

It is an unprimeable number.

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, 9815579 + ... + 9832268.

It is an arithmetic number, because the mean of its divisors is an integer number (24608929620).

Almost surely, 2^163961283215 is an apocalyptic number.

163961283215 is a deficient number, since it is larger than the sum of its proper divisors (32910153745).

163961283215 is a wasteful number, since it uses less digits than its factorization.

163961283215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19649521.

The product of its digits is 466560, while the sum is 47.

The spelling of 163961283215 in words is "one hundred sixty-three billion, nine hundred sixty-one million, two hundred eighty-three thousand, two hundred fifteen".