2455120521440 has 48 divisors (see below), whose sum is σ = 5935111137648. Its totient is φ = 959209875456.

The previous prime is 2455120521389. The next prime is 2455120521457. The reversal of 2455120521440 is 441250215542.

It is a self number, because there is not a number n which added to its sum of digits gives 2455120521440.

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 7 ways as a sum of consecutive naturals, for example, 178417577 + ... + 178431336.

It is an arithmetic number, because the mean of its divisors is an integer number (123648148701).

Almost surely, 2^{2455120521440} is an apocalyptic number.

2455120521440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2455120521440 is an abundant number, since it is smaller than the sum of its proper divisors (3479990616208).

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

2455120521440 is a wasteful number, since it uses less digits than its factorization.

2455120521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356848971 (or 356848963 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 2455120521440 its reverse (441250215542), we get a palindrome (2896370736982).

The spelling of 2455120521440 in words is "two trillion, four hundred fifty-five billion, one hundred twenty million, five hundred twenty-one thousand, four hundred forty".