41661626164 has 36 divisors (see below), whose sum is σ = 77850525004. Its totient is φ = 19503783936.

The previous prime is 41661626137. The next prime is 41661626177. The reversal of 41661626164 is 46162616614.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4525252900 + 37136373264 = 67270^2 + 192708^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 41661626164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129742 + ... + 316474.

Almost surely, 2^41661626164 is an apocalyptic number.

It is an amenable number.

41661626164 is a deficient number, since it is larger than the sum of its proper divisors (36188898840).

41661626164 is a wasteful number, since it uses less digits than its factorization.

41661626164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186964 (or 186945 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The spelling of 41661626164 in words is "forty-one billion, six hundred sixty-one million, six hundred twenty-six thousand, one hundred sixty-four".