163539265187864 has 16 divisors (see below), whose sum is σ = 306636342547920. Its totient is φ = 81769573841760.

The previous prime is 163539265187849. The next prime is 163539265187873. The reversal of 163539265187864 is 468781562935361.

It is a junction number, because it is equal to n+sod(n) for n = 163539265187791 and 163539265187800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5888549 + ... + 19019819.

It is an arithmetic number, because the mean of its divisors is an integer number (19164771409245).

Almost surely, 2^{163539265187864} is an apocalyptic number.

It is an amenable number.

163539265187864 is a deficient number, since it is larger than the sum of its proper divisors (143097077360056).

163539265187864 is a wasteful number, since it uses less digits than its factorization.

163539265187864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14688050 (or 14688046 counting only the distinct ones).

The product of its digits is 1567641600, while the sum is 74.

The spelling of 163539265187864 in words is "one hundred sixty-three trillion, five hundred thirty-nine billion, two hundred sixty-five million, one hundred eighty-seven thousand, eight hundred sixty-four".