16681008730 has 16 divisors (see below), whose sum is σ = 30073411584. Its totient is φ = 6661826640.

The previous prime is 16681008709. The next prime is 16681008733. The reversal of 16681008730 is 3780018661.

It is not an unprimeable number, because it can be changed into a prime (16681008733) 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, 1315482 + ... + 1328101.

It is an arithmetic number, because the mean of its divisors is an integer number (1879588224).

Almost surely, 2^16681008730 is an apocalyptic number.

16681008730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16681008730 is a deficient number, since it is larger than the sum of its proper divisors (13392402854).

16681008730 is a wasteful number, since it uses less digits than its factorization.

16681008730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644221.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 16681008730 in words is "sixteen billion, six hundred eighty-one million, eight thousand, seven hundred thirty".