64337037696 has 448 divisors, whose sum is σ = 199069401600. Its totient is φ = 20692869120.

The previous prime is 64337037691. The next prime is 64337037811. The reversal of 64337037696 is 69673073346.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64337037691) by changing a digit.

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 55 ways as a sum of consecutive naturals, for example, 506590785 + ... + 506590911.

Almost surely, 2^64337037696 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 64337037696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99534700800).

64337037696 is an abundant number, since it is smaller than the sum of its proper divisors (134732363904).

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

64337037696 is an equidigital number, since it uses as much as digits as its factorization.

64337037696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 54.

The spelling of 64337037696 in words is "sixty-four billion, three hundred thirty-seven million, thirty-seven thousand, six hundred ninety-six".