7664550541 has 2 divisors, whose sum is σ = 7664550542. Its totient is φ = 7664550540.

The previous prime is 7664550529. The next prime is 7664550571. The reversal of 7664550541 is 1450554667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7540317225 + 124233316 = 86835^2 + 11146^2 .

It is a cyclic number.

It is not a de Polignac number, because 7664550541 - 2²⁷ = 7530332813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7664550571) 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 as a sum of consecutive naturals, namely, 3832275270 + 3832275271.

It is an arithmetic number, because the mean of its divisors is an integer number (3832275271).

Almost surely, 2^7664550541 is an apocalyptic number.

It is an amenable number.

7664550541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7664550541 is an equidigital number, since it uses as much as digits as its factorization.

7664550541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 7664550541 is about 87547.4188140347. The cubic root of 7664550541 is about 1971.6457976604.

The spelling of 7664550541 in words is "seven billion, six hundred sixty-four million, five hundred fifty thousand, five hundred forty-one".