64751022336 has 1296 divisors, whose sum is σ = 254714449920. Its totient is φ = 14233190400.

The previous prime is 64751022311. The next prime is 64751022341. The reversal of 64751022336 is 63322015746.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 64751022294 and 64751022303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2088742641 + ... + 2088742671.

Almost surely, 2^64751022336 is an apocalyptic number.

64751022336 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 64751022336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127357224960).

64751022336 is an abundant number, since it is smaller than the sum of its proper divisors (189963427584).

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

64751022336 is a wasteful number, since it uses less digits than its factorization.

64751022336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 64751022336 in words is "sixty-four billion, seven hundred fifty-one million, twenty-two thousand, three hundred thirty-six".