16485340344 has 256 divisors, whose sum is σ = 48550993920. Its totient is φ = 4614382080.

The previous prime is 16485340331. The next prime is 16485340349. The reversal of 16485340344 is 44304358461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16485340296 and 16485340305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16485340349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26892582 + ... + 26893194.

It is an arithmetic number, because the mean of its divisors is an integer number (189652320).

Almost surely, 2^16485340344 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 16485340344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24275496960).

16485340344 is an abundant number, since it is smaller than the sum of its proper divisors (32065653576).

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

16485340344 is a wasteful number, since it uses less digits than its factorization.

16485340344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 16485340344 in words is "sixteen billion, four hundred eighty-five million, three hundred forty thousand, three hundred forty-four".