65750630400 has 1224 divisors, whose sum is σ = 295801032800. Its totient is φ = 13872660480.

The previous prime is 65750630381. The next prime is 65750630459. The reversal of 65750630400 is 403605756.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5057740794 + ... + 5057740806.

Almost surely, 2^65750630400 is an apocalyptic number.

65750630400 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 65750630400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147900516400).

65750630400 is an abundant number, since it is smaller than the sum of its proper divisors (230050402400).

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

65750630400 is an equidigital number, since it uses as much as digits as its factorization.

65750630400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 65750630400 in words is "sixty-five billion, seven hundred fifty million, six hundred thirty thousand, four hundred".