16504740566 has 16 divisors (see below), whose sum is σ = 25750821888. Its totient is φ = 7925197800.

The previous prime is 16504740559. The next prime is 16504740607. The reversal of 16504740566 is 66504740561.

It is a super-2 number, since 2×16504740566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007930 + ... + 1024173.

It is an arithmetic number, because the mean of its divisors is an integer number (1609426368).

Almost surely, 2^16504740566 is an apocalyptic number.

16504740566 is a deficient number, since it is larger than the sum of its proper divisors (9246081322).

16504740566 is a wasteful number, since it uses less digits than its factorization.

16504740566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032267.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 16504740566 in words is "sixteen billion, five hundred four million, seven hundred forty thousand, five hundred sixty-six".