64015572012 has 96 divisors (see below), whose sum is σ = 178629341184. Its totient is φ = 17457638400.

The previous prime is 64015572007. The next prime is 64015572037. The reversal of 64015572012 is 21027551046.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 21712 + ... + 358472.

It is an arithmetic number, because the mean of its divisors is an integer number (1860722304).

Almost surely, 2^64015572012 is an apocalyptic number.

64015572012 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 64015572012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89314670592).

64015572012 is an abundant number, since it is smaller than the sum of its proper divisors (114613769172).

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

64015572012 is a wasteful number, since it uses less digits than its factorization.

64015572012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336879 (or 336877 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 64015572012 in words is "sixty-four billion, fifteen million, five hundred seventy-two thousand, twelve".