163540064403616 has 48 divisors (see below), whose sum is σ = 348836997890304. Its totient is φ = 75170262150144.

The previous prime is 163540064403601. The next prime is 163540064403649. The reversal of 163540064403616 is 616304460045361.

It is a self number, because there is not a number n which added to its sum of digits gives 163540064403616.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3495617520 + ... + 3495664303.

It is an arithmetic number, because the mean of its divisors is an integer number (7267437456048).

Almost surely, 2^{163540064403616} is an apocalyptic number.

163540064403616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163540064403616 is an abundant number, since it is smaller than the sum of its proper divisors (185296933486688).

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

163540064403616 is a wasteful number, since it uses less digits than its factorization.

163540064403616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6991281893 (or 6991281885 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 163540064403616 in words is "one hundred sixty-three trillion, five hundred forty billion, sixty-four million, four hundred three thousand, six hundred sixteen".