5511330661165 has 32 divisors (see below), whose sum is σ = 8014900008960. Its totient is φ = 3551607005184.

The previous prime is 5511330661157. The next prime is 5511330661189. The reversal of 5511330661165 is 5611660331155.

It is not a de Polignac number, because 5511330661165 - 2³ = 5511330661157 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 6481245 + ... + 7282114.

It is an arithmetic number, because the mean of its divisors is an integer number (250465625280).

Almost surely, 2^{5511330661165} is an apocalyptic number.

It is an amenable number.

5511330661165 is a deficient number, since it is larger than the sum of its proper divisors (2503569347795).

5511330661165 is a wasteful number, since it uses less digits than its factorization.

5511330661165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764061.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 5511330661165 in words is "five trillion, five hundred eleven billion, three hundred thirty million, six hundred sixty-one thousand, one hundred sixty-five".