5515621014454 has 16 divisors (see below), whose sum is σ = 8795101780080. Its totient is φ = 2586794637600.

The previous prime is 5515621014451. The next prime is 5515621014457. The reversal of 5515621014454 is 4544101265155.

It is an interprime number because it is at equal distance from previous prime (5515621014451) and next prime (5515621014457).

It is a self number, because there is not a number n which added to its sum of digits gives 5515621014454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515621014451) 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 7 ways as a sum of consecutive naturals, for example, 718550229 + ... + 718557904.

It is an arithmetic number, because the mean of its divisors is an integer number (549693861255).

Almost surely, 2^{5515621014454} is an apocalyptic number.

5515621014454 is a deficient number, since it is larger than the sum of its proper divisors (3279480765626).

5515621014454 is a wasteful number, since it uses less digits than its factorization.

5515621014454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437108255.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 5515621014454 in words is "five trillion, five hundred fifteen billion, six hundred twenty-one million, fourteen thousand, four hundred fifty-four".