65475680000 has 180 divisors, whose sum is σ = 164122182840. Its totient is φ = 26061312000.

The previous prime is 65475679987. The next prime is 65475680003. The reversal of 65475680000 is 8657456.

It is a self number, because there is not a number n which added to its sum of digits gives 65475680000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65475680003) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 36639107 + ... + 36640893.

Almost surely, 2^65475680000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65475680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82061091420).

65475680000 is an abundant number, since it is smaller than the sum of its proper divisors (98646502840).

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

65475680000 is an equidigital number, since it uses as much as digits as its factorization.

65475680000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 65475680000 in words is "sixty-five billion, four hundred seventy-five million, six hundred eighty thousand".