41610665421 has 12 divisors (see below), whose sum is σ = 64727701948. Its totient is φ = 25606563264.

The previous prime is 41610665413. The next prime is 41610665491. The reversal of 41610665421 is 12456601614.

41610665421 is a `hidden beast` number, since 4 + 1 + 6 + 106 + 6 + 542 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16534359396 + 25076306025 = 128586^2 + 158355^2 .

It is not a de Polignac number, because 41610665421 - 2³ = 41610665413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41610665491) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 177823240 + ... + 177823473.

Almost surely, 2^41610665421 is an apocalyptic number.

It is an amenable number.

41610665421 is a deficient number, since it is larger than the sum of its proper divisors (23117036527).

41610665421 is a wasteful number, since it uses less digits than its factorization.

41610665421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355646732 (or 355646729 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 41610665421 in words is "forty-one billion, six hundred ten million, six hundred sixty-five thousand, four hundred twenty-one".