41664551 has 2 divisors, whose sum is σ = 41664552. Its totient is φ = 41664550.

The previous prime is 41664541. The next prime is 41664617. The reversal of 41664551 is 15546614.

41664551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41664551 - 2¹⁸ = 41402407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41664541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20832275 + 20832276.

It is an arithmetic number, because the mean of its divisors is an integer number (20832276).

Almost surely, 2^41664551 is an apocalyptic number.

41664551 is a deficient number, since it is larger than the sum of its proper divisors (1).

41664551 is an equidigital number, since it uses as much as digits as its factorization.

41664551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 41664551 is about 6454.8083627634. The cubic root of 41664551 is about 346.6747693907.

The spelling of 41664551 in words is "forty-one million, six hundred sixty-four thousand, five hundred fifty-one".