6618169158 has 16 divisors (see below), whose sum is σ = 13294141680. Its totient is φ = 2196422496.

The previous prime is 6618169157. The next prime is 6618169171. The reversal of 6618169158 is 8519618166.

It is a self number, because there is not a number n which added to its sum of digits gives 6618169158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6618169153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2406985 + ... + 2409732.

It is an arithmetic number, because the mean of its divisors is an integer number (830883855).

Almost surely, 2^6618169158 is an apocalyptic number.

6618169158 is an abundant number, since it is smaller than the sum of its proper divisors (6675972522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6618169158 is a wasteful number, since it uses less digits than its factorization.

6618169158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816951.

The product of its digits is 622080, while the sum is 51.

The square root of 6618169158 is about 81352.1306297506. The cubic root of 6618169158 is about 1877.4971558991.

The spelling of 6618169158 in words is "six billion, six hundred eighteen million, one hundred sixty-nine thousand, one hundred fifty-eight".