55011015566 has 8 divisors (see below), whose sum is σ = 88863948264. Its totient is φ = 25389699480.

The previous prime is 55011015539. The next prime is 55011015569. The reversal of 55011015566 is 66551011055.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55011015569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057904120 + ... + 1057904171.

It is an arithmetic number, because the mean of its divisors is an integer number (11107993533).

Almost surely, 2^55011015566 is an apocalyptic number.

55011015566 is a deficient number, since it is larger than the sum of its proper divisors (33852932698).

55011015566 is a wasteful number, since it uses less digits than its factorization.

55011015566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115808306.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 55011015566 in words is "fifty-five billion, eleven million, fifteen thousand, five hundred sixty-six".