65032278180 has 96 divisors (see below), whose sum is σ = 189646168320. Its totient is φ = 16635548160.

The previous prime is 65032278167. The next prime is 65032278187. The reversal of 65032278180 is 8187223056.

It is a super-2 number, since 2×65032278180² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65032278187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48675 + ... + 363914.

It is an arithmetic number, because the mean of its divisors is an integer number (1975480920).

Almost surely, 2^65032278180 is an apocalyptic number.

65032278180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65032278180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94823084160).

65032278180 is an abundant number, since it is smaller than the sum of its proper divisors (124613890140).

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

65032278180 is a wasteful number, since it uses less digits than its factorization.

65032278180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412709 (or 412707 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 65032278180 in words is "sixty-five billion, thirty-two million, two hundred seventy-eight thousand, one hundred eighty".