6550166655 has 40 divisors (see below), whose sum is σ = 11809778112. Its totient is φ = 3473191872.

The previous prime is 6550166633. The next prime is 6550166663. The reversal of 6550166655 is 5566610556.

It is not a de Polignac number, because 6550166655 - 2⁹ = 6550166143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6550166655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23322 + ... + 116808.

Almost surely, 2^6550166655 is an apocalyptic number.

6550166655 is a deficient number, since it is larger than the sum of its proper divisors (5259611457).

6550166655 is a wasteful number, since it uses less digits than its factorization.

6550166655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93677 (or 93668 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 6550166655 is about 80933.0998726726. The cubic root of 6550166655 is about 1871.0444997440.

The spelling of 6550166655 in words is "six billion, five hundred fifty million, one hundred sixty-six thousand, six hundred fifty-five".