65664042114 has 96 divisors (see below), whose sum is σ = 146373756480. Its totient is φ = 19620817920.

The previous prime is 65664042107. The next prime is 65664042133. The reversal of 65664042114 is 41124046656.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27976689 + ... + 27979035.

It is an arithmetic number, because the mean of its divisors is an integer number (1524726630).

Almost surely, 2^65664042114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65664042114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73186878240).

65664042114 is an abundant number, since it is smaller than the sum of its proper divisors (80709714366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65664042114 is a wasteful number, since it uses less digits than its factorization.

65664042114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896 (or 2885 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 65664042114 in words is "sixty-five billion, six hundred sixty-four million, forty-two thousand, one hundred fourteen".