5511514115421 has 24 divisors (see below), whose sum is σ = 8260657021344. Its totient is φ = 3672239230800.

The previous prime is 5511514115417. The next prime is 5511514115479. The reversal of 5511514115421 is 1245114151155.

5511514115421 is a `hidden beast` number, since 5 + 5 + 1 + 1 + 514 + 115 + 4 + 21 = 666.

It is not a de Polignac number, because 5511514115421 - 2² = 5511514115417 is a prime.

It is a super-2 number, since 2×5511514115421² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5511514115021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6066930 + ... + 6915971.

It is an arithmetic number, because the mean of its divisors is an integer number (344194042556).

Almost surely, 2^{5511514115421} is an apocalyptic number.

It is an amenable number.

5511514115421 is a deficient number, since it is larger than the sum of its proper divisors (2749142905923).

5511514115421 is a wasteful number, since it uses less digits than its factorization.

5511514115421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984663 (or 12984651 counting only the distinct ones).

The product of its digits is 20000, while the sum is 36.

Adding to 5511514115421 its reverse (1245114151155), we get a palindrome (6756628266576).

The spelling of 5511514115421 in words is "five trillion, five hundred eleven billion, five hundred fourteen million, one hundred fifteen thousand, four hundred twenty-one".