41661612515646 has 24 divisors (see below), whose sum is σ = 94191471775440. Its totient is φ = 13283412686016.

The previous prime is 41661612515641. The next prime is 41661612515647. The reversal of 41661612515646 is 64651521616614.

41661612515646 is a `hidden beast` number, since 4 + 1 + 6 + 6 + 1 + 61 + 2 + 515 + 64 + 6 = 666.

41661612515646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 41661612515592 and 41661612515601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41661612515641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50315956731 + ... + 50315957558.

It is an arithmetic number, because the mean of its divisors is an integer number (3924644657310).

Almost surely, 2^{41661612515646} is an apocalyptic number.

41661612515646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

41661612515646 is an abundant number, since it is smaller than the sum of its proper divisors (52529859259794).

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

41661612515646 is a wasteful number, since it uses less digits than its factorization.

41661612515646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100631914320 (or 100631914317 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 41661612515646 in words is "forty-one trillion, six hundred sixty-one billion, six hundred twelve million, five hundred fifteen thousand, six hundred forty-six".