65444052099 has 8 divisors (see below), whose sum is σ = 88561105600. Its totient is φ = 42978183336.

The previous prime is 65444052073. The next prime is 65444052109. The reversal of 65444052099 is 99025044456.

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

It is not a de Polignac number, because 65444052099 - 2²⁵ = 65410497667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65444052049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162795949 + ... + 162796350.

It is an arithmetic number, because the mean of its divisors is an integer number (11070138200).

Almost surely, 2^65444052099 is an apocalyptic number.

65444052099 is a deficient number, since it is larger than the sum of its proper divisors (23117053501).

65444052099 is a wasteful number, since it uses less digits than its factorization.

65444052099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325592369.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 65444052099 in words is "sixty-five billion, four hundred forty-four million, fifty-two thousand, ninety-nine".