65551253412 has 48 divisors (see below), whose sum is σ = 153312832512. Its totient is φ = 21799065120.

The previous prime is 65551253359. The next prime is 65551253413. The reversal of 65551253412 is 21435215556.

It is not an unprimeable number, because it can be changed into a prime (65551253413) 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 15 ways as a sum of consecutive naturals, for example, 11332273 + ... + 11338055.

It is an arithmetic number, because the mean of its divisors is an integer number (3194017344).

Almost surely, 2^65551253412 is an apocalyptic number.

It is an amenable number.

65551253412 is an abundant number, since it is smaller than the sum of its proper divisors (87761579100).

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

65551253412 is a wasteful number, since it uses less digits than its factorization.

65551253412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848 (or 7846 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

Adding to 65551253412 its reverse (21435215556), we get a palindrome (86986468968).

The spelling of 65551253412 in words is "sixty-five billion, five hundred fifty-one million, two hundred fifty-three thousand, four hundred twelve".