16800749040 has 80 divisors (see below), whose sum is σ = 52401967488. Its totient is φ = 4452703488.

The previous prime is 16800749023. The next prime is 16800749041. The reversal of 16800749040 is 4094700861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 16800749040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16800749041) 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, 175614 + ... + 253853.

Almost surely, 2^16800749040 is an apocalyptic number.

16800749040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16800749040 is an abundant number, since it is smaller than the sum of its proper divisors (35601218448).

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

16800749040 is a wasteful number, since it uses less digits than its factorization.

16800749040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429646 (or 429640 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 16800749040 in words is "sixteen billion, eight hundred million, seven hundred forty-nine thousand, forty".