65117022899 has 4 divisors (see below), whose sum is σ = 65761746000. Its totient is φ = 64472299800.

The previous prime is 65117022871. The next prime is 65117022923. The reversal of 65117022899 is 99822071156.

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 65117022899 - 2⁸ = 65117022643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65117022199) 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, 322361399 + ... + 322361600.

It is an arithmetic number, because the mean of its divisors is an integer number (16440436500).

Almost surely, 2^65117022899 is an apocalyptic number.

65117022899 is a deficient number, since it is larger than the sum of its proper divisors (644723101).

65117022899 is a wasteful number, since it uses less digits than its factorization.

65117022899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644723100.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 65117022899 in words is "sixty-five billion, one hundred seventeen million, twenty-two thousand, eight hundred ninety-nine".