16535006566 has 16 divisors (see below), whose sum is σ = 26754424704. Its totient is φ = 7618961664.

The previous prime is 16535006549. The next prime is 16535006573. The reversal of 16535006566 is 66560053561.

16535006566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16535006566² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508075 + ... + 539638.

It is an arithmetic number, because the mean of its divisors is an integer number (1672151544).

Almost surely, 2^16535006566 is an apocalyptic number.

16535006566 is a deficient number, since it is larger than the sum of its proper divisors (10219418138).

16535006566 is a wasteful number, since it uses less digits than its factorization.

16535006566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048335.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 16535006566 in words is "sixteen billion, five hundred thirty-five million, six thousand, five hundred sixty-six".