16006946780 has 24 divisors (see below), whose sum is σ = 36670460400. Its totient is φ = 5820707840.

The previous prime is 16006946779. The next prime is 16006946783. The reversal of 16006946780 is 8764960061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16006946783) 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, 36379205 + ... + 36379644.

It is an arithmetic number, because the mean of its divisors is an integer number (1527935850).

Almost surely, 2^16006946780 is an apocalyptic number.

16006946780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16006946780 is an abundant number, since it is smaller than the sum of its proper divisors (20663513620).

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

16006946780 is a wasteful number, since it uses less digits than its factorization.

16006946780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72758869 (or 72758867 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 16006946780 in words is "sixteen billion, six million, nine hundred forty-six thousand, seven hundred eighty".