65980252028 has 6 divisors (see below), whose sum is σ = 115465441056. Its totient is φ = 32990126012.

The previous prime is 65980251991. The next prime is 65980252031. The reversal of 65980252028 is 82025208956.

It is a super-2 number, since 2×65980252028² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8247531500 + ... + 8247531507.

It is an arithmetic number, because the mean of its divisors is an integer number (19244240176).

Almost surely, 2^65980252028 is an apocalyptic number.

It is an amenable number.

65980252028 is a deficient number, since it is larger than the sum of its proper divisors (49485189028).

65980252028 is a wasteful number, since it uses less digits than its factorization.

65980252028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16495063011 (or 16495063009 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 65980252028 in words is "sixty-five billion, nine hundred eighty million, two hundred fifty-two thousand, twenty-eight".