55011155565 has 8 divisors (see below), whose sum is σ = 88017848928. Its totient is φ = 29339282960.

The previous prime is 55011155531. The next prime is 55011155587. The reversal of 55011155565 is 56555111055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55011155565 - 2⁶ = 55011155501 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833705171 + ... + 1833705200.

It is an arithmetic number, because the mean of its divisors is an integer number (11002231116).

Almost surely, 2^55011155565 is an apocalyptic number.

It is an amenable number.

55011155565 is a deficient number, since it is larger than the sum of its proper divisors (33006693363).

55011155565 is a wasteful number, since it uses less digits than its factorization.

55011155565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667410379.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 55011155565 in words is "fifty-five billion, eleven million, one hundred fifty-five thousand, five hundred sixty-five".