41661631604 has 12 divisors (see below), whose sum is σ = 77196552804. Its totient is φ = 19605473664.

The previous prime is 41661631597. The next prime is 41661631619. The reversal of 41661631604 is 40613616614.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37044700900 + 4616930704 = 192470^2 + 67948^2 .

It is a super-2 number, since 2×41661631604² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306335459 + ... + 306335594.

It is an arithmetic number, because the mean of its divisors is an integer number (6433046067).

Almost surely, 2^41661631604 is an apocalyptic number.

It is an amenable number.

41661631604 is a deficient number, since it is larger than the sum of its proper divisors (35534921200).

41661631604 is a wasteful number, since it uses less digits than its factorization.

41661631604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612671074 (or 612671072 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 41661631604 in words is "forty-one billion, six hundred sixty-one million, six hundred thirty-one thousand, six hundred four".