65887580952 has 128 divisors (see below), whose sum is σ = 194147193600. Its totient is φ = 20632195584.

The previous prime is 65887580951. The next prime is 65887580989. The reversal of 65887580952 is 25908578856.

It is a self number, because there is not a number n which added to its sum of digits gives 65887580952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65887580951) 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 31 ways as a sum of consecutive naturals, for example, 1992183 + ... + 2024985.

It is an arithmetic number, because the mean of its divisors is an integer number (1516774950).

Almost surely, 2^65887580952 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 65887580952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97073596800).

65887580952 is an abundant number, since it is smaller than the sum of its proper divisors (128259612648).

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

65887580952 is a wasteful number, since it uses less digits than its factorization.

65887580952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33382 (or 33372 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 63.

The spelling of 65887580952 in words is "sixty-five billion, eight hundred eighty-seven million, five hundred eighty thousand, nine hundred fifty-two".