6166644156 has 24 divisors (see below), whose sum is σ = 15987596240. Its totient is φ = 2055548016.

The previous prime is 6166644151. The next prime is 6166644163. The reversal of 6166644156 is 6514466616.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166644151) 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, 28549171 + ... + 28549386.

Almost surely, 2^6166644156 is an apocalyptic number.

It is an amenable number.

6166644156 is an abundant number, since it is smaller than the sum of its proper divisors (9820952084).

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

6166644156 is a wasteful number, since it uses less digits than its factorization.

6166644156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57098570 (or 57098562 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 6166644156 is about 78527.9832671131. The cubic root of 6166644156 is about 1833.7901238706.

The spelling of 6166644156 in words is "six billion, one hundred sixty-six million, six hundred forty-four thousand, one hundred fifty-six".