16436630820 has 96 divisors (see below), whose sum is σ = 46602436608. Its totient is φ = 4328122752.

The previous prime is 16436630797. The next prime is 16436630831. The reversal of 16436630820 is 2803663461.

16436630820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2264437 + ... + 2271683.

It is an arithmetic number, because the mean of its divisors is an integer number (485442048).

Almost surely, 2^16436630820 is an apocalyptic number.

16436630820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16436630820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23301218304).

16436630820 is an abundant number, since it is smaller than the sum of its proper divisors (30165805788).

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

16436630820 is a wasteful number, since it uses less digits than its factorization.

16436630820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7729 (or 7727 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 16436630820 in words is "sixteen billion, four hundred thirty-six million, six hundred thirty thousand, eight hundred twenty".