16448099436 has 144 divisors (see below), whose sum is σ = 46614946560. Its totient is φ = 5053544640.

The previous prime is 16448099413. The next prime is 16448099449. The reversal of 16448099436 is 63499084461.

It is a happy number.

16448099436 is a `hidden beast` number, since 1 + 6 + 44 + 80 + 99 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 671281 + ... + 695351.

Almost surely, 2^16448099436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16448099436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23307473280).

16448099436 is an abundant number, since it is smaller than the sum of its proper divisors (30166847124).

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

16448099436 is a wasteful number, since it uses less digits than its factorization.

16448099436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24146 (or 24132 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 16448099436 in words is "sixteen billion, four hundred forty-eight million, ninety-nine thousand, four hundred thirty-six".