16257514865 has 8 divisors (see below), whose sum is σ = 19628706048. Its totient is φ = 12926219760.

The previous prime is 16257514807. The next prime is 16257514883. The reversal of 16257514865 is 56841575261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16257514865 - 2¹⁰ = 16257513841 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 9973121 + ... + 9974750.

It is an arithmetic number, because the mean of its divisors is an integer number (2453588256).

Almost surely, 2^16257514865 is an apocalyptic number.

It is an amenable number.

16257514865 is a deficient number, since it is larger than the sum of its proper divisors (3371191183).

16257514865 is a wasteful number, since it uses less digits than its factorization.

16257514865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19948039.

The product of its digits is 2016000, while the sum is 50.

The spelling of 16257514865 in words is "sixteen billion, two hundred fifty-seven million, five hundred fourteen thousand, eight hundred sixty-five".