6553615166 has 32 divisors (see below), whose sum is σ = 11975808000. Its totient is φ = 2627176032.

The previous prime is 6553615151. The next prime is 6553615213. The reversal of 6553615166 is 6615163556.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134921 + ... + 176948.

It is an arithmetic number, because the mean of its divisors is an integer number (374244000).

Almost surely, 2^6553615166 is an apocalyptic number.

6553615166 is a deficient number, since it is larger than the sum of its proper divisors (5422192834).

6553615166 is a wasteful number, since it uses less digits than its factorization.

6553615166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311976.

The product of its digits is 486000, while the sum is 44.

The square root of 6553615166 is about 80954.4017703794. The cubic root of 6553615166 is about 1871.3727959985.

The spelling of 6553615166 in words is "six billion, five hundred fifty-three million, six hundred fifteen thousand, one hundred sixty-six".