64031337216 has 1080 divisors, whose sum is σ = 257306985936. Its totient is φ = 15606743040.

The previous prime is 64031337211. The next prime is 64031337229. The reversal of 64031337216 is 61273313046.

64031337216 is a `hidden beast` number, since 6 + 403 + 1 + 3 + 37 + 216 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (64031337211) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 190003800 + ... + 190004136.

Almost surely, 2^64031337216 is an apocalyptic number.

64031337216 is a gapful number since it is divisible by the number (66) 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 64031337216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128653492968).

64031337216 is an abundant number, since it is smaller than the sum of its proper divisors (193275648720).

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

64031337216 is a wasteful number, since it uses less digits than its factorization.

64031337216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 64031337216 in words is "sixty-four billion, thirty-one million, three hundred thirty-seven thousand, two hundred sixteen".