1166006655 has 48 divisors (see below), whose sum is σ = 2211389856. Its totient is φ = 563650560.

The previous prime is 1166006651. The next prime is 1166006663. The reversal of 1166006655 is 5566006611.

It is not a de Polignac number, because 1166006655 - 2² = 1166006651 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166006651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171399 + ... + 178071.

It is an arithmetic number, because the mean of its divisors is an integer number (46070622).

Almost surely, 2^1166006655 is an apocalyptic number.

1166006655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166006655 is a deficient number, since it is larger than the sum of its proper divisors (1045383201).

1166006655 is a wasteful number, since it uses less digits than its factorization.

1166006655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048 (or 7045 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1166006655 is about 34146.8396048595. The cubic root of 1166006655 is about 1052.5280444943.

The spelling of 1166006655 in words is "one billion, one hundred sixty-six million, six thousand, six hundred fifty-five".