16771069680 has 80 divisors (see below), whose sum is σ = 53258403744. Its totient is φ = 4363202560.

The previous prime is 16771069673. The next prime is 16771069699. The reversal of 16771069680 is 8696017761.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×16771069680² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842349 + ... + 862028.

Almost surely, 2^16771069680 is an apocalyptic number.

16771069680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16771069680 is an abundant number, since it is smaller than the sum of its proper divisors (36487334064).

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

16771069680 is a wasteful number, since it uses less digits than its factorization.

16771069680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704434 (or 1704428 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 51.

The spelling of 16771069680 in words is "sixteen billion, seven hundred seventy-one million, sixty-nine thousand, six hundred eighty".