65546988000 has 288 divisors, whose sum is σ = 232527570912. Its totient is φ = 16134144000.

The previous prime is 65546987999. The next prime is 65546988047. The reversal of 65546988000 is 88964556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2011840 + ... + 2044160.

It is an arithmetic number, because the mean of its divisors is an integer number (807387399).

Almost surely, 2^65546988000 is an apocalyptic number.

65546988000 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 65546988000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116263785456).

65546988000 is an abundant number, since it is smaller than the sum of its proper divisors (166980582912).

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

65546988000 is a wasteful number, since it uses less digits than its factorization.

65546988000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32375 (or 32344 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 65546988000 in words is "sixty-five billion, five hundred forty-six million, nine hundred eighty-eight thousand".