64220532960 has 192 divisors, whose sum is σ = 209785185792. Its totient is φ = 16500381696.

The previous prime is 64220532913. The next prime is 64220532991. The reversal of 64220532960 is 6923502246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1811727 + ... + 1846833.

It is an arithmetic number, because the mean of its divisors is an integer number (1092631176).

Almost surely, 2^64220532960 is an apocalyptic number.

64220532960 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 64220532960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104892592896).

64220532960 is an abundant number, since it is smaller than the sum of its proper divisors (145564652832).

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

64220532960 is a wasteful number, since it uses less digits than its factorization.

64220532960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35265 (or 35257 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 64220532960 in words is "sixty-four billion, two hundred twenty million, five hundred thirty-two thousand, nine hundred sixty".