16734641264 has 80 divisors (see below), whose sum is σ = 35713249920. Its totient is φ = 7533415680.

The previous prime is 16734641263. The next prime is 16734641327. The reversal of 16734641264 is 46214643761.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16734641263) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8914694 + ... + 8916570.

It is an arithmetic number, because the mean of its divisors is an integer number (446415624).

Almost surely, 2^16734641264 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 16734641264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17856624960).

16734641264 is an abundant number, since it is smaller than the sum of its proper divisors (18978608656).

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

16734641264 is a wasteful number, since it uses less digits than its factorization.

16734641264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358 (or 2352 counting only the distinct ones).

The product of its digits is 580608, while the sum is 44.

The spelling of 16734641264 in words is "sixteen billion, seven hundred thirty-four million, six hundred forty-one thousand, two hundred sixty-four".