65275840000 has 600 divisors, whose sum is σ = 198922611888. Its totient is φ = 21288960000.

The previous prime is 65275839983. The next prime is 65275840031. The reversal of 65275840000 is 4857256.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 360639910 + ... + 360640090.

Almost surely, 2^65275840000 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 65275840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99461305944).

65275840000 is an abundant number, since it is smaller than the sum of its proper divisors (133646771888).

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

65275840000 is an equidigital number, since it uses as much as digits as its factorization.

65275840000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The spelling of 65275840000 in words is "sixty-five billion, two hundred seventy-five million, eight hundred forty thousand".