41501436661 has 2 divisors, whose sum is σ = 41501436662. Its totient is φ = 41501436660.

The previous prime is 41501436623. The next prime is 41501436673. The reversal of 41501436661 is 16663410514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23757598225 + 17743838436 = 154135^2 + 133206^2 .

It is a cyclic number.

It is not a de Polignac number, because 41501436661 - 2²³ = 41493048053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41501436661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41501436161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20750718330 + 20750718331.

It is an arithmetic number, because the mean of its divisors is an integer number (20750718331).

Almost surely, 2^41501436661 is an apocalyptic number.

It is an amenable number.

41501436661 is a deficient number, since it is larger than the sum of its proper divisors (1).

41501436661 is an equidigital number, since it uses as much as digits as its factorization.

41501436661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 41501436661 in words is "forty-one billion, five hundred one million, four hundred thirty-six thousand, six hundred sixty-one".