16505700057 has 24 divisors (see below), whose sum is σ = 29724552000. Its totient is φ = 8574389280.

The previous prime is 16505700031. The next prime is 16505700103. The reversal of 16505700057 is 75000750561.

It is not a de Polignac number, because 16505700057 - 2²⁴ = 16488922841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16505699994 and 16505700030.

It is not an unprimeable number, because it can be changed into a prime (16505700017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11908182 + ... + 11909567.

It is an arithmetic number, because the mean of its divisors is an integer number (1238523000).

Almost surely, 2^16505700057 is an apocalyptic number.

It is an amenable number.

16505700057 is a deficient number, since it is larger than the sum of its proper divisors (13218851943).

16505700057 is a wasteful number, since it uses less digits than its factorization.

16505700057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23817773 (or 23817770 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The spelling of 16505700057 in words is "sixteen billion, five hundred five million, seven hundred thousand, fifty-seven".