16640072754 has 16 divisors (see below), whose sum is σ = 33303067392. Its totient is φ = 5542870608.

The previous prime is 16640072741. The next prime is 16640072759. The reversal of 16640072754 is 45727004661.

It is not an unprimeable number, because it can be changed into a prime (16640072759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945634 + ... + 963069.

It is an arithmetic number, because the mean of its divisors is an integer number (2081441712).

Almost surely, 2^16640072754 is an apocalyptic number.

16640072754 is an abundant number, since it is smaller than the sum of its proper divisors (16662994638).

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

16640072754 is a wasteful number, since it uses less digits than its factorization.

16640072754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910161.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 16640072754 in words is "sixteen billion, six hundred forty million, seventy-two thousand, seven hundred fifty-four".