65720082800 has 30 divisors (see below), whose sum is σ = 157892499888. Its totient is φ = 26288032960.

The previous prime is 65720082793. The next prime is 65720082829. The reversal of 65720082800 is 828002756.

65720082800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82149704 + ... + 82150503.

Almost surely, 2^65720082800 is an apocalyptic number.

It is an amenable number.

65720082800 is an abundant number, since it is smaller than the sum of its proper divisors (92172417088).

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

65720082800 is a wasteful number, since it uses less digits than its factorization.

65720082800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164300225 (or 164300214 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 65720082800 in words is "sixty-five billion, seven hundred twenty million, eighty-two thousand, eight hundred".