5515666150557 has 4 divisors (see below), whose sum is σ = 7354221534080. Its totient is φ = 3677110767036.

The previous prime is 5515666150541. The next prime is 5515666150627. The reversal of 5515666150557 is 7550516665155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5515666150557 - 2⁴ = 5515666150541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5515666150497 and 5515666150506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515666150517) 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 3 ways as a sum of consecutive naturals, for example, 919277691757 + ... + 919277691762.

It is an arithmetic number, because the mean of its divisors is an integer number (1838555383520).

Almost surely, 2^{5515666150557} is an apocalyptic number.

It is an amenable number.

5515666150557 is a deficient number, since it is larger than the sum of its proper divisors (1838555383523).

5515666150557 is a wasteful number, since it uses less digits than its factorization.

5515666150557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838555383522.

The product of its (nonzero) digits is 23625000, while the sum is 57.

The spelling of 5515666150557 in words is "five trillion, five hundred fifteen billion, six hundred sixty-six million, one hundred fifty thousand, five hundred fifty-seven".