163264705915 has 16 divisors (see below), whose sum is σ = 197545049856. Its totient is φ = 129528162400.

The previous prime is 163264705907. The next prime is 163264705943. The reversal of 163264705915 is 519507462361.

It is not a de Polignac number, because 163264705915 - 2³ = 163264705907 is a prime.

It is a super-2 number, since 2×163264705915² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 907224 + ... + 1072186.

It is an arithmetic number, because the mean of its divisors is an integer number (12346565616).

Almost surely, 2^163264705915 is an apocalyptic number.

163264705915 is a deficient number, since it is larger than the sum of its proper divisors (34280343941).

163264705915 is a wasteful number, since it uses less digits than its factorization.

163264705915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166610.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 163264705915 in words is "one hundred sixty-three billion, two hundred sixty-four million, seven hundred five thousand, nine hundred fifteen".