64159395535872 has 1232 divisors, whose sum is σ = 244314899146752. Its totient is φ = 16374777937920.

The previous prime is 64159395535871. The next prime is 64159395535883. The reversal of 64159395535872 is 27853559395146.

64159395535872 is a `hidden beast` number, since 6 + 4 + 1 + 5 + 9 + 3 + 9 + 5 + 535 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 64159395535872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64159395535871) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2105849983 + ... + 2105880449.

Almost surely, 2^{64159395535872} is an apocalyptic number.

64159395535872 is a gapful number since it is divisible by the number (62) 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 64159395535872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122157449573376).

64159395535872 is an abundant number, since it is smaller than the sum of its proper divisors (180155503610880).

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

64159395535872 is a wasteful number, since it uses less digits than its factorization.

64159395535872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30556 (or 30523 counting only the distinct ones).

The product of its digits is 1224720000, while the sum is 72.

The spelling of 64159395535872 in words is "sixty-four trillion, one hundred fifty-nine billion, three hundred ninety-five million, five hundred thirty-five thousand, eight hundred seventy-two".