65841473072 has 120 divisors (see below), whose sum is σ = 137071851840. Its totient is φ = 30628316160.

The previous prime is 65841473063. The next prime is 65841473077. The reversal of 65841473072 is 27037414856.

It is a super-2 number, since 2×65841473072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65841473077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142822922 + ... + 142823382.

It is an arithmetic number, because the mean of its divisors is an integer number (1142265432).

Almost surely, 2^65841473072 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 65841473072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68535925920).

65841473072 is an abundant number, since it is smaller than the sum of its proper divisors (71230378768).

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

65841473072 is a wasteful number, since it uses less digits than its factorization.

65841473072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 874 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 65841473072 in words is "sixty-five billion, eight hundred forty-one million, four hundred seventy-three thousand, seventy-two".