65476955899 has 4 divisors (see below), whose sum is σ = 65610310680. Its totient is φ = 65343601120.

The previous prime is 65476955891. The next prime is 65476955923. The reversal of 65476955899 is 99855967456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65476955899 - 2³ = 65476955891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65476955891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66676654 + ... + 66677635.

It is an arithmetic number, because the mean of its divisors is an integer number (16402577670).

Almost surely, 2^65476955899 is an apocalyptic number.

65476955899 is a deficient number, since it is larger than the sum of its proper divisors (133354781).

65476955899 is a wasteful number, since it uses less digits than its factorization.

65476955899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133354780.

The product of its digits is 734832000, while the sum is 73.

The spelling of 65476955899 in words is "sixty-five billion, four hundred seventy-six million, nine hundred fifty-five thousand, eight hundred ninety-nine".