65821080752 has 80 divisors (see below), whose sum is σ = 156312495360. Its totient is φ = 26220070656.

The previous prime is 65821080719. The next prime is 65821080763. The reversal of 65821080752 is 25708012856.

It is a super-2 number, since 2×65821080752² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179018 + ... + 404585.

It is an arithmetic number, because the mean of its divisors is an integer number (1953906192).

Almost surely, 2^65821080752 is an apocalyptic number.

It is an amenable number.

65821080752 is an abundant number, since it is smaller than the sum of its proper divisors (90491414608).

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

65821080752 is a wasteful number, since it uses less digits than its factorization.

65821080752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583690 (or 583684 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 65821080752 in words is "sixty-five billion, eight hundred twenty-one million, eighty thousand, seven hundred fifty-two".