64201683252 has 24 divisors (see below), whose sum is σ = 171204488896. Its totient is φ = 18343338048.

The previous prime is 64201683223. The next prime is 64201683269. The reversal of 64201683252 is 25238610246.

It is a super-2 number, since 2×64201683252² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64201683252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382152793 + ... + 382152960.

Almost surely, 2^64201683252 is an apocalyptic number.

It is an amenable number.

64201683252 is an abundant number, since it is smaller than the sum of its proper divisors (107002805644).

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

64201683252 is a wasteful number, since it uses less digits than its factorization.

64201683252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764305767 (or 764305765 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 64201683252 in words is "sixty-four billion, two hundred one million, six hundred eighty-three thousand, two hundred fifty-two".