65451250120 has 16 divisors (see below), whose sum is σ = 147265312860. Its totient is φ = 26180500032.

The previous prime is 65451250097. The next prime is 65451250199. The reversal of 65451250120 is 2105215456.

It can be written as a sum of positive squares in 2 ways, for example, as 62959842724 + 2491407396 = 250918^2 + 49914^2 .

It is a super-2 number, since 2×65451250120² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 818140587 + ... + 818140666.

Almost surely, 2^65451250120 is an apocalyptic number.

It is an amenable number.

65451250120 is an abundant number, since it is smaller than the sum of its proper divisors (81814062740).

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

65451250120 is a wasteful number, since it uses less digits than its factorization.

65451250120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636281264 (or 1636281260 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 65451250120 its reverse (2105215456), we get a palindrome (67556465576).

The spelling of 65451250120 in words is "sixty-five billion, four hundred fifty-one million, two hundred fifty thousand, one hundred twenty".