65999486525 has 24 divisors (see below), whose sum is σ = 93974026944. Its totient is φ = 45042278400.

The previous prime is 65999486503. The next prime is 65999486557. The reversal of 65999486525 is 52568499956.

It is not a de Polignac number, because 65999486525 - 2¹⁰ = 65999485501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 856772 + ... + 930621.

It is an arithmetic number, because the mean of its divisors is an integer number (3915584456).

Almost surely, 2^65999486525 is an apocalyptic number.

It is an amenable number.

65999486525 is a deficient number, since it is larger than the sum of its proper divisors (27974540419).

65999486525 is a wasteful number, since it uses less digits than its factorization.

65999486525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787621 (or 1787616 counting only the distinct ones).

The product of its digits is 209952000, while the sum is 68.

The spelling of 65999486525 in words is "sixty-five billion, nine hundred ninety-nine million, four hundred eighty-six thousand, five hundred twenty-five".