65401846160 has 160 divisors (see below), whose sum is σ = 175434604800. Its totient is φ = 22211241984.

The previous prime is 65401846109. The next prime is 65401846187. The reversal of 65401846160 is 6164810456.

It is a super-2 number, since 2×65401846160² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31855694 + ... + 31857746.

It is an arithmetic number, because the mean of its divisors is an integer number (1096466280).

Almost surely, 2^65401846160 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 65401846160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87717302400).

65401846160 is an abundant number, since it is smaller than the sum of its proper divisors (110032758640).

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

65401846160 is a wasteful number, since it uses less digits than its factorization.

65401846160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585 (or 2579 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 65401846160 in words is "sixty-five billion, four hundred one million, eight hundred forty-six thousand, one hundred sixty".