2461626665550 has 144 divisors (see below), whose sum is σ = 7123680961488. Its totient is φ = 605821939200.

The previous prime is 2461626665549. The next prime is 2461626665569. The reversal of 2461626665550 is 555666261642.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32505730 + ... + 32581370.

It is an arithmetic number, because the mean of its divisors is an integer number (49470006677).

Almost surely, 2^{2461626665550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2461626665550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3561840480744).

2461626665550 is an abundant number, since it is smaller than the sum of its proper divisors (4662054295938).

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

2461626665550 is a wasteful number, since it uses less digits than its factorization.

2461626665550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81235 (or 81227 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 2461626665550 in words is "two trillion, four hundred sixty-one billion, six hundred twenty-six million, six hundred sixty-five thousand, five hundred fifty".