65702020050 has 120 divisors (see below), whose sum is σ = 184362895332. Its totient is φ = 17346960000.

The previous prime is 65702020037. The next prime is 65702020067. The reversal of 65702020050 is 5002020756.

65702020050 is a `hidden beast` number, since 6 + 570 + 20 + 20 + 0 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 36862848009 + 28839172041 = 191997^2 + 169821^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65702019996 and 65702020023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 328740 + ... + 489360.

Almost surely, 2^65702020050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65702020050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92181447666).

65702020050 is an abundant number, since it is smaller than the sum of its proper divisors (118660875282).

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

65702020050 is a wasteful number, since it uses less digits than its factorization.

65702020050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160746 (or 160732 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The spelling of 65702020050 in words is "sixty-five billion, seven hundred two million, twenty thousand, fifty".