5515665154 has 16 divisors (see below), whose sum is σ = 8713831680. Its totient is φ = 2611217520.

The previous prime is 5515665139. The next prime is 5515665217. The reversal of 5515665154 is 4515665155.

It is a self number, because there is not a number n which added to its sum of digits gives 5515665154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29464 + ... + 109084.

It is an arithmetic number, because the mean of its divisors is an integer number (544614480).

Almost surely, 2^5515665154 is an apocalyptic number.

5515665154 is a deficient number, since it is larger than the sum of its proper divisors (3198166526).

5515665154 is a wasteful number, since it uses less digits than its factorization.

5515665154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81465.

The product of its digits is 450000, while the sum is 43.

The square root of 5515665154 is about 74267.5242215600. The cubic root of 5515665154 is about 1766.8484412386.

Subtracting from 5515665154 its reverse (4515665155), we obtain a palindrome (999999999).

The spelling of 5515665154 in words is "five billion, five hundred fifteen million, six hundred sixty-five thousand, one hundred fifty-four".