64141558212 has 72 divisors (see below), whose sum is σ = 159785886400. Its totient is φ = 20021506560.

The previous prime is 64141558211. The next prime is 64141558237. The reversal of 64141558212 is 21285514146.

It is a happy number.

It is a super-2 number, since 2×64141558212² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64141558211) 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 23 ways as a sum of consecutive naturals, for example, 643662 + ... + 736602.

Almost surely, 2^64141558212 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 64141558212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79892943200).

64141558212 is an abundant number, since it is smaller than the sum of its proper divisors (95644328188).

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

64141558212 is a wasteful number, since it uses less digits than its factorization.

64141558212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93181 (or 93162 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The spelling of 64141558212 in words is "sixty-four billion, one hundred forty-one million, five hundred fifty-eight thousand, two hundred twelve".