5515661155475 has 24 divisors (see below), whose sum is σ = 6849487780320. Its totient is φ = 4406038053120.

The previous prime is 5515661155457. The next prime is 5515661155489. The reversal of 5515661155475 is 5745511665155.

It is a de Polignac number, because none of the positive numbers 2^k-5515661155475 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5515661155475.

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 23 ways as a sum of consecutive naturals, for example, 49377887 + ... + 49489463.

It is an arithmetic number, because the mean of its divisors is an integer number (285395324180).

Almost surely, 2^{5515661155475} is an apocalyptic number.

5515661155475 is a deficient number, since it is larger than the sum of its proper divisors (1333826624845).

5515661155475 is a wasteful number, since it uses less digits than its factorization.

5515661155475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114479 (or 114474 counting only the distinct ones).

The product of its digits is 15750000, while the sum is 56.

The spelling of 5515661155475 in words is "five trillion, five hundred fifteen billion, six hundred sixty-one million, one hundred fifty-five thousand, four hundred seventy-five".