611412540440 has 32 divisors (see below), whose sum is σ = 1481499618480. Its totient is φ = 225752322432.

The previous prime is 611412540437. The next prime is 611412540463. The reversal of 611412540440 is 44045214116.

It is a junction number, because it is equal to n+sod(n) for n = 611412540397 and 611412540406.

It is a congruent number.

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, 587896154 + ... + 587897193.

Almost surely, 2^611412540440 is an apocalyptic number.

It is an amenable number.

611412540440 is an abundant number, since it is smaller than the sum of its proper divisors (870087078040).

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

611412540440 is a wasteful number, since it uses less digits than its factorization.

611412540440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175793371 (or 1175793367 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 611412540440 its reverse (44045214116), we get a palindrome (655457754556).

The spelling of 611412540440 in words is "six hundred eleven billion, four hundred twelve million, five hundred forty thousand, four hundred forty".