16677817720 has 64 divisors (see below), whose sum is σ = 40774348800. Its totient is φ = 6116135040.

The previous prime is 16677817687. The next prime is 16677817721. The reversal of 16677817720 is 2771877661.

It is a happy number.

16677817720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16677817721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330384 + ... + 377503.

It is an arithmetic number, because the mean of its divisors is an integer number (637099200).

Almost surely, 2^16677817720 is an apocalyptic number.

16677817720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16677817720 is an abundant number, since it is smaller than the sum of its proper divisors (24096531080).

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

16677817720 is a wasteful number, since it uses less digits than its factorization.

16677817720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707948 (or 707944 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 16677817720 in words is "sixteen billion, six hundred seventy-seven million, eight hundred seventeen thousand, seven hundred twenty".