64025565052152 has 128 divisors (see below), whose sum is σ = 175540989542400. Its totient is φ = 19298831817600.

The previous prime is 64025565052147. The next prime is 64025565052271. The reversal of 64025565052152 is 25125056552046.

It is a happy number.

It is a super-2 number, since 2×64025565052152² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999321223 + ... + 999385289.

It is an arithmetic number, because the mean of its divisors is an integer number (1371413980800).

Almost surely, 2^{64025565052152} 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 64025565052152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87770494771200).

64025565052152 is an abundant number, since it is smaller than the sum of its proper divisors (111515424490248).

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

64025565052152 is a wasteful number, since it uses less digits than its factorization.

64025565052152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84097 (or 84093 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 48.

The spelling of 64025565052152 in words is "sixty-four trillion, twenty-five billion, five hundred sixty-five million, fifty-two thousand, one hundred fifty-two".