163663574016 has 44 divisors (see below), whose sum is σ = 436223101952. Its totient is φ = 54554523648.

The previous prime is 163663573981. The next prime is 163663574017. The reversal of 163663574016 is 610475366361.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163663574017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26634880 + ... + 26641023.

It is an arithmetic number, because the mean of its divisors is an integer number (9914161408).

Almost surely, 2^163663574016 is an apocalyptic number.

163663574016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163663574016 is an abundant number, since it is smaller than the sum of its proper divisors (272559527936).

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

163663574016 is an equidigital number, since it uses as much as digits as its factorization.

163663574016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53275926 (or 53275908 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 163663574016 in words is "one hundred sixty-three billion, six hundred sixty-three million, five hundred seventy-four thousand, sixteen".