64035223120 has 120 divisors (see below), whose sum is σ = 164332060200. Its totient is φ = 23188070400.

The previous prime is 64035223073. The next prime is 64035223123. The reversal of 64035223120 is 2132253046.

It can be written as a sum of positive squares in 4 ways, for example, as 19466946576 + 44568276544 = 139524^2 + 211112^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64035223123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2319156 + ... + 2346604.

It is an arithmetic number, because the mean of its divisors is an integer number (1369433835).

Almost surely, 2^64035223120 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 64035223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82166030100).

64035223120 is an abundant number, since it is smaller than the sum of its proper divisors (100296837080).

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

64035223120 is a wasteful number, since it uses less digits than its factorization.

64035223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725 (or 27708 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 64035223120 its reverse (2132253046), we get a palindrome (66167476166).

The spelling of 64035223120 in words is "sixty-four billion, thirty-five million, two hundred twenty-three thousand, one hundred twenty".