65380028700 has 216 divisors, whose sum is σ = 222839904000. Its totient is φ = 14754579840.

The previous prime is 65380028699. The next prime is 65380028789. The reversal of 65380028700 is 782008356.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 1133151 + ... + 1189449.

Almost surely, 2^65380028700 is an apocalyptic number.

65380028700 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65380028700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111419952000).

65380028700 is an abundant number, since it is smaller than the sum of its proper divisors (157459875300).

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

65380028700 is a wasteful number, since it uses less digits than its factorization.

65380028700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56409 (or 56395 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 65380028700 in words is "sixty-five billion, three hundred eighty million, twenty-eight thousand, seven hundred".