64210057072 has 120 divisors (see below), whose sum is σ = 153115356240. Its totient is φ = 25936727040.

The previous prime is 64210057057. The next prime is 64210057081. The reversal of 64210057072 is 27075001246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2923572 + ... + 2945452.

It is an arithmetic number, because the mean of its divisors is an integer number (1275961302).

Almost surely, 2^64210057072 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 64210057072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76557678120).

64210057072 is an abundant number, since it is smaller than the sum of its proper divisors (88905299168).

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

64210057072 is a wasteful number, since it uses less digits than its factorization.

64210057072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22119 (or 22106 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 64210057072 in words is "sixty-four billion, two hundred ten million, fifty-seven thousand, seventy-two".