163743809860 has 48 divisors (see below), whose sum is σ = 355541114880. Its totient is φ = 63302792960.

The previous prime is 163743809851. The next prime is 163743809861. The reversal of 163743809860 is 68908347361.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (163743809861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845380 + ... + 1020859.

It is an arithmetic number, because the mean of its divisors is an integer number (7407106560).

Almost surely, 2^163743809860 is an apocalyptic number.

163743809860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163743809860 is an abundant number, since it is smaller than the sum of its proper divisors (191797305020).

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

163743809860 is a wasteful number, since it uses less digits than its factorization.

163743809860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866396 (or 1866394 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 163743809860 in words is "one hundred sixty-three billion, seven hundred forty-three million, eight hundred nine thousand, eight hundred sixty".