163601407136 has 24 divisors (see below), whose sum is σ = 322099592724. Its totient is φ = 81798336000.

The previous prime is 163601407127. The next prime is 163601407187. The reversal of 163601407136 is 631704106361.

It can be written as a sum of positive squares in 2 ways, for example, as 159644997136 + 3956410000 = 399556^2 + 62900^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163601407136.

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, 1712636 + ... + 1805636.

Almost surely, 2^163601407136 is an apocalyptic number.

163601407136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163601407136 is a deficient number, since it is larger than the sum of its proper divisors (158498185588).

163601407136 is an equidigital number, since it uses as much as digits as its factorization.

163601407136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147984 (or 147976 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 163601407136 in words is "one hundred sixty-three billion, six hundred one million, four hundred seven thousand, one hundred thirty-six".