6662149236 has 144 divisors (see below), whose sum is σ = 18218403840. Its totient is φ = 2126113920.

The previous prime is 6662149223. The next prime is 6662149393. The reversal of 6662149236 is 6329412666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 6662149191 and 6662149200.

It is a congruent number.

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, 3578946 + ... + 3580806.

Almost surely, 2^6662149236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6662149236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9109201920).

6662149236 is an abundant number, since it is smaller than the sum of its proper divisors (11556254604).

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

6662149236 is a wasteful number, since it uses less digits than its factorization.

6662149236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2022 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 6662149236 is about 81621.9899046819. The cubic root of 6662149236 is about 1881.6468552049.

The spelling of 6662149236 in words is "six billion, six hundred sixty-two million, one hundred forty-nine thousand, two hundred thirty-six".