41297655618 has 54 divisors (see below), whose sum is σ = 94472972217. Its totient is φ = 13036191840.

The previous prime is 41297655611. The next prime is 41297655631. The reversal of 41297655618 is 81655679214.

It is a happy number.

41297655618 is a `hidden beast` number, since 4 + 1 + 2 + 9 + 76 + 5 + 561 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21811449969 + 19486205649 = 147687^2 + 139593^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=143697.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (41297655611) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16380198 + ... + 16382718.

Almost surely, 2^41297655618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41297655618

41297655618 is an abundant number, since it is smaller than the sum of its proper divisors (53175316599).

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

41297655618 is an equidigital number, since it uses as much as digits as its factorization.

41297655618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 2545 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 41297655618 in words is "forty-one billion, two hundred ninety-seven million, six hundred fifty-five thousand, six hundred eighteen".