16494734400 has 84 divisors (see below), whose sum is σ = 54116490192. Its totient is φ = 4398594560.

The previous prime is 16494734387. The next prime is 16494734407. The reversal of 16494734400 is 443749461.

It is not an unprimeable number, because it can be changed into a prime (16494734407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1713402 + ... + 1723001.

Almost surely, 2^16494734400 is an apocalyptic number.

16494734400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16494734400 is an abundant number, since it is smaller than the sum of its proper divisors (37621755792).

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

16494734400 is a wasteful number, since it uses less digits than its factorization.

16494734400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436428 (or 3436413 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 16494734400 in words is "sixteen billion, four hundred ninety-four million, seven hundred thirty-four thousand, four hundred".