16220843654430 has 64 divisors (see below), whose sum is σ = 41234559347520. Its totient is φ = 4069678331904.

The previous prime is 16220843654359. The next prime is 16220843654453. The reversal of 16220843654430 is 3445634802261.

It is a happy number.

It is a super-2 number, since 2×16220843654430² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16220843654430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4158625 + ... + 7052364.

It is an arithmetic number, because the mean of its divisors is an integer number (644289989805).

Almost surely, 2^{16220843654430} is an apocalyptic number.

16220843654430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16220843654430 is an abundant number, since it is smaller than the sum of its proper divisors (25013715693090).

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

16220843654430 is a wasteful number, since it uses less digits than its factorization.

16220843654430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213853.

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 16220843654430 in words is "sixteen trillion, two hundred twenty billion, eight hundred forty-three million, six hundred fifty-four thousand, four hundred thirty".