16505830064 has 10 divisors (see below), whose sum is σ = 31980045780. Its totient is φ = 8252915024.

The previous prime is 16505830057. The next prime is 16505830073. The reversal of 16505830064 is 46003850561.

It is a super-2 number, since 2×16505830064² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515807174 + ... + 515807205.

It is an arithmetic number, because the mean of its divisors is an integer number (3198004578).

Almost surely, 2^16505830064 is an apocalyptic number.

It is an amenable number.

16505830064 is a deficient number, since it is larger than the sum of its proper divisors (15474215716).

16505830064 is a wasteful number, since it uses less digits than its factorization.

16505830064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031614387 (or 1031614381 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 16505830064 in words is "sixteen billion, five hundred five million, eight hundred thirty thousand, sixty-four".