16682709897 has 48 divisors (see below), whose sum is σ = 29356288000. Its totient is φ = 8916871392.

The previous prime is 16682709881. The next prime is 16682709917. The reversal of 16682709897 is 79890728661.

It is not a de Polignac number, because 16682709897 - 2⁴ = 16682709881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16682709817) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6354 + ... + 182772.

Almost surely, 2^16682709897 is an apocalyptic number.

It is an amenable number.

16682709897 is a deficient number, since it is larger than the sum of its proper divisors (12673578103).

16682709897 is a wasteful number, since it uses less digits than its factorization.

16682709897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176530 (or 176527 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 16682709897 in words is "sixteen billion, six hundred eighty-two million, seven hundred nine thousand, eight hundred ninety-seven".