65980252020 has 48 divisors (see below), whose sum is σ = 185812623360. Its totient is φ = 17493027456.

The previous prime is 65980251991. The next prime is 65980252031. The reversal of 65980252020 is 2025208956.

It is a self number, because there is not a number n which added to its sum of digits gives 65980252020.

It is a congruent number.

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, 3167860 + ... + 3188619.

It is an arithmetic number, because the mean of its divisors is an integer number (3871096320).

Almost surely, 2^65980252020 is an apocalyptic number.

65980252020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65980252020 is an abundant number, since it is smaller than the sum of its proper divisors (119832371340).

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

65980252020 is a wasteful number, since it uses less digits than its factorization.

65980252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356664 (or 6356662 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 65980252020 in words is "sixty-five billion, nine hundred eighty million, two hundred fifty-two thousand, twenty".