65066822016 has 128 divisors (see below), whose sum is σ = 197638920960. Its totient is φ = 18579732480.

The previous prime is 65066821961. The next prime is 65066822027. The reversal of 65066822016 is 61022866056.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399550 + ... + 5411586.

It is an arithmetic number, because the mean of its divisors is an integer number (1544054070).

Almost surely, 2^65066822016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65066822016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98819460480).

65066822016 is an abundant number, since it is smaller than the sum of its proper divisors (132572098944).

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

65066822016 is a wasteful number, since it uses less digits than its factorization.

65066822016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14072 (or 14060 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 65066822016 in words is "sixty-five billion, sixty-six million, eight hundred twenty-two thousand, sixteen".