16446064460 has 96 divisors (see below), whose sum is σ = 41758080000. Its totient is φ = 5314864896.

The previous prime is 16446064451. The next prime is 16446064477. The reversal of 16446064460 is 6446064461.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513806 + ... + 544874.

It is an arithmetic number, because the mean of its divisors is an integer number (434980000).

Almost surely, 2^16446064460 is an apocalyptic number.

16446064460 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 16446064460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20879040000).

16446064460 is an abundant number, since it is smaller than the sum of its proper divisors (25312015540).

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

16446064460 is a wasteful number, since it uses less digits than its factorization.

16446064460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31303 (or 31301 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

Subtracting from 16446064460 its reverse (6446064461), we obtain a palindrome (9999999999).

The spelling of 16446064460 in words is "sixteen billion, four hundred forty-six million, sixty-four thousand, four hundred sixty".