16421154244 has 96 divisors (see below), whose sum is σ = 35236776960. Its totient is φ = 6606230400.

The previous prime is 16421154193. The next prime is 16421154251. The reversal of 16421154244 is 44245112461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816874 + ... + 836734.

It is an arithmetic number, because the mean of its divisors is an integer number (367049760).

Almost surely, 2^16421154244 is an apocalyptic number.

It is an amenable number.

16421154244 is an abundant number, since it is smaller than the sum of its proper divisors (18815622716).

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

16421154244 is a wasteful number, since it uses less digits than its factorization.

16421154244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19961 (or 19959 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The spelling of 16421154244 in words is "sixteen billion, four hundred twenty-one million, one hundred fifty-four thousand, two hundred forty-four".