163643520362560 has 56 divisors (see below), whose sum is σ = 445344151849920. Its totient is φ = 56106349837824.

The previous prime is 163643520362467. The next prime is 163643520362563. The reversal of 163643520362560 is 65263025346361.

It is a tau number, because it is divible by the number of its divisors (56).

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 163643520362498 and 163643520362507.

It is not an unprimeable number, because it can be changed into a prime (163643520362563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36527569270 + ... + 36527573749.

Almost surely, 2^{163643520362560} is an apocalyptic number.

163643520362560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163643520362560 is an abundant number, since it is smaller than the sum of its proper divisors (281700631487360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163643520362560 is an equidigital number, since it uses as much as digits as its factorization.

163643520362560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73055143043 (or 73055143033 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 52.

The spelling of 163643520362560 in words is "one hundred sixty-three trillion, six hundred forty-three billion, five hundred twenty million, three hundred sixty-two thousand, five hundred sixty".