3661649112 has 64 divisors (see below), whose sum is σ = 9996255360. Its totient is φ = 1108486400.

The previous prime is 3661649111. The next prime is 3661649119. The reversal of 3661649112 is 2119461663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661649111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281668 + ... + 294380.

It is an arithmetic number, because the mean of its divisors is an integer number (156191490).

Almost surely, 2^3661649112 is an apocalyptic number.

It is an amenable number.

3661649112 is an abundant number, since it is smaller than the sum of its proper divisors (6334606248).

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

3661649112 is a wasteful number, since it uses less digits than its factorization.

3661649112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824 (or 13820 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 3661649112 is about 60511.5618043362. The cubic root of 3661649112 is about 1541.3179688224.

The spelling of 3661649112 in words is "three billion, six hundred sixty-one million, six hundred forty-nine thousand, one hundred twelve".