6155644 has 12 divisors (see below), whose sum is σ = 11751768. Its totient is φ = 2798000.

The previous prime is 6155641. The next prime is 6155687. The reversal of 6155644 is 4465516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6155641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69907 + ... + 69994.

It is an arithmetic number, because the mean of its divisors is an integer number (979314).

Almost surely, 2^6155644 is an apocalyptic number.

It is an amenable number.

6155644 is a deficient number, since it is larger than the sum of its proper divisors (5596124).

6155644 is a wasteful number, since it uses less digits than its factorization.

6155644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139916 (or 139914 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 6155644 is about 2481.0570327987. The cubic root of 6155644 is about 183.2699093742.

The spelling of 6155644 in words is "six million, one hundred fifty-five thousand, six hundred forty-four".