16730981780 has 48 divisors (see below), whose sum is σ = 35388119424. Its totient is φ = 6644280960.

The previous prime is 16730981731. The next prime is 16730981809. The reversal of 16730981780 is 8718903761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3952265 + ... + 3956495.

It is an arithmetic number, because the mean of its divisors is an integer number (737252488).

Almost surely, 2^16730981780 is an apocalyptic number.

16730981780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16730981780 is an abundant number, since it is smaller than the sum of its proper divisors (18657137644).

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

16730981780 is a wasteful number, since it uses less digits than its factorization.

16730981780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616 (or 5614 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 16730981780 in words is "sixteen billion, seven hundred thirty million, nine hundred eighty-one thousand, seven hundred eighty".