6172230636 has 144 divisors (see below), whose sum is σ = 19294679040. Its totient is φ = 1635603840.

The previous prime is 6172230629. The next prime is 6172230641. The reversal of 6172230636 is 6360322716.

6172230636 is a `hidden beast` number, since 6 + 17 + 2 + 2 + 3 + 0 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6172230636.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66261 + ... + 129363.

Almost surely, 2^6172230636 is an apocalyptic number.

6172230636 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6172230636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9647339520).

6172230636 is an abundant number, since it is smaller than the sum of its proper divisors (13122448404).

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

6172230636 is a wasteful number, since it uses less digits than its factorization.

6172230636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63156 (or 63151 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 6172230636 is about 78563.5452102309. The cubic root of 6172230636 is about 1834.3437118301.

The spelling of 6172230636 in words is "six billion, one hundred seventy-two million, two hundred thirty thousand, six hundred thirty-six".