65050721802 has 48 divisors (see below), whose sum is σ = 159058205280. Its totient is φ = 19032602400.

The previous prime is 65050721789. The next prime is 65050721837. The reversal of 65050721802 is 20812705056.

It is a happy number.

65050721802 is a `hidden beast` number, since 6 + 50 + 507 + 21 + 80 + 2 = 666.

65050721802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65050721802² (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 23 ways as a sum of consecutive naturals, for example, 5658724 + ... + 5670207.

It is an arithmetic number, because the mean of its divisors is an integer number (3313712610).

Almost surely, 2^65050721802 is an apocalyptic number.

65050721802 is an abundant number, since it is smaller than the sum of its proper divisors (94007483478).

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

65050721802 is a wasteful number, since it uses less digits than its factorization.

65050721802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328979 (or 11328976 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 65050721802 in words is "sixty-five billion, fifty million, seven hundred twenty-one thousand, eight hundred two".