163450003453221 has 8 divisors (see below), whose sum is σ = 218164935537504. Its totient is φ = 108850870168880.

The previous prime is 163450003453199. The next prime is 163450003453273. The reversal of 163450003453221 is 122354300054361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163450003453221 - 2⁴⁷ = 22712515097893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163450003453221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163450003453021) 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, 28949696691 + ... + 28949702336.

It is an arithmetic number, because the mean of its divisors is an integer number (27270616942188).

Almost surely, 2^{163450003453221} is an apocalyptic number.

It is an amenable number.

163450003453221 is a deficient number, since it is larger than the sum of its proper divisors (54714932084283).

163450003453221 is an equidigital number, since it uses as much as digits as its factorization.

163450003453221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57899399971.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 163450003453221 in words is "one hundred sixty-three trillion, four hundred fifty billion, three million, four hundred fifty-three thousand, two hundred twenty-one".