65199485516 has 72 divisors (see below), whose sum is σ = 127268366400. Its totient is φ = 28984521280.

The previous prime is 65199485503. The next prime is 65199485531. The reversal of 65199485516 is 61558499156.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 51786095 + ... + 51787353.

It is an arithmetic number, because the mean of its divisors is an integer number (1767616200).

Almost surely, 2^65199485516 is an apocalyptic number.

It is an amenable number.

65199485516 is a deficient number, since it is larger than the sum of its proper divisors (62068880884).

65199485516 is a wasteful number, since it uses less digits than its factorization.

65199485516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799 (or 1744 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 59.

The spelling of 65199485516 in words is "sixty-five billion, one hundred ninety-nine million, four hundred eighty-five thousand, five hundred sixteen".