64520445203032 has 256 divisors, whose sum is σ = 152803324800000. Its totient is φ = 24863032719360.

The previous prime is 64520445203029. The next prime is 64520445203041. The reversal of 64520445203032 is 23030254402546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2681524282 + ... + 2681548342.

It is an arithmetic number, because the mean of its divisors is an integer number (596887987500).

Almost surely, 2^{64520445203032} 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 64520445203032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76401662400000).

64520445203032 is an abundant number, since it is smaller than the sum of its proper divisors (88282879596968).

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

64520445203032 is a wasteful number, since it uses less digits than its factorization.

64520445203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24714 (or 24710 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 64520445203032 its reverse (23030254402546), we get a palindrome (87550699605578).

The spelling of 64520445203032 in words is "sixty-four trillion, five hundred twenty billion, four hundred forty-five million, two hundred three thousand, thirty-two".