65460251012 has 24 divisors (see below), whose sum is σ = 123388150872. Its totient is φ = 30207340800.

The previous prime is 65460250979. The next prime is 65460251023. The reversal of 65460251012 is 21015206456.

It can be written as a sum of positive squares in 4 ways, for example, as 9127127296 + 56333123716 = 95536^2 + 237346^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65460251012.

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 7 ways as a sum of consecutive naturals, for example, 215462 + ... + 421122.

It is an arithmetic number, because the mean of its divisors is an integer number (5141172953).

Almost surely, 2^65460251012 is an apocalyptic number.

It is an amenable number.

65460251012 is a deficient number, since it is larger than the sum of its proper divisors (57927899860).

65460251012 is a wasteful number, since it uses less digits than its factorization.

65460251012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211799 (or 211797 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 65460251012 its reverse (21015206456), we get a palindrome (86475457468).

The spelling of 65460251012 in words is "sixty-five billion, four hundred sixty million, two hundred fifty-one thousand, twelve".