64571025652 has 12 divisors (see below), whose sum is σ = 129142051360. Its totient is φ = 27673296696.

The previous prime is 64571025643. The next prime is 64571025653. The reversal of 64571025652 is 25652017546.

64571025652 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64571025599 and 64571025608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64571025653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153054002 + ... + 1153054057.

Almost surely, 2^64571025652 is an apocalyptic number.

It is an amenable number.

64571025652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64571025652 is a wasteful number, since it uses less digits than its factorization.

64571025652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306108070 (or 2306108068 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 64571025652 in words is "sixty-four billion, five hundred seventy-one million, twenty-five thousand, six hundred fifty-two".