64158842880 has 720 divisors, whose sum is σ = 252474715584. Its totient is φ = 15500574720.

The previous prime is 64158842873. The next prime is 64158842887. The reversal of 64158842880 is 8824885146.

64158842880 is a `hidden beast` number, since 64 + 1 + 5 + 88 + 428 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (64158842873) and next prime (64158842887).

It is a tau number, because it is divible by the number of its divisors (720).

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 (64158842887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218972014 + ... + 218972306.

Almost surely, 2^64158842880 is an apocalyptic number.

64158842880 is a gapful number since it is divisible by the number (60) 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 64158842880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126237357792).

64158842880 is an abundant number, since it is smaller than the sum of its proper divisors (188315872704).

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

64158842880 is an equidigital number, since it uses as much as digits as its factorization.

64158842880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 54.

The spelling of 64158842880 in words is "sixty-four billion, one hundred fifty-eight million, eight hundred forty-two thousand, eight hundred eighty".