16421822700 has 36 divisors (see below), whose sum is σ = 47513807880. Its totient is φ = 4379152640.

The previous prime is 16421822687. The next prime is 16421822719. The reversal of 16421822700 is 722812461.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27369405 + ... + 27370004.

Almost surely, 2^16421822700 is an apocalyptic number.

16421822700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16421822700 is an abundant number, since it is smaller than the sum of its proper divisors (31091985180).

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

16421822700 is a wasteful number, since it uses less digits than its factorization.

16421822700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54739426 (or 54739419 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 16421822700 in words is "sixteen billion, four hundred twenty-one million, eight hundred twenty-two thousand, seven hundred".