5515440445155 has 32 divisors (see below), whose sum is σ = 9214140096000. Its totient is φ = 2811916236800.

The previous prime is 5515440445147. The next prime is 5515440445159.

5515440445155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5515440445155 - 2³ = 5515440445147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5515440445159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4440405 + ... + 5545094.

It is an arithmetic number, because the mean of its divisors is an integer number (287941878000).

Almost surely, 2^{5515440445155} is an apocalyptic number.

5515440445155 is a deficient number, since it is larger than the sum of its proper divisors (3698699650845).

5515440445155 is a wasteful number, since it uses less digits than its factorization.

5515440445155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987131.

The product of its (nonzero) digits is 4000000, while the sum is 48.

Adding to 5515440445155 its product of nonzero digits (4000000), we get a palindrome (5515444445155).

The spelling of 5515440445155 in words is "five trillion, five hundred fifteen billion, four hundred forty million, four hundred forty-five thousand, one hundred fifty-five".