866149411 has 2 divisors, whose sum is σ = 866149412. Its totient is φ = 866149410.

The previous prime is 866149399. The next prime is 866149423. The reversal of 866149411 is 114941668.

It is a balanced prime because it is at equal distance from previous prime (866149399) and next prime (866149423).

It is a cyclic number.

It is not a de Polignac number, because 866149411 - 2¹³ = 866141219 is a prime.

It is not a weakly prime, because it can be changed into another prime (866149481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433074705 + 433074706.

It is an arithmetic number, because the mean of its divisors is an integer number (433074706).

Almost surely, 2^866149411 is an apocalyptic number.

866149411 is a deficient number, since it is larger than the sum of its proper divisors (1).

866149411 is an equidigital number, since it uses as much as digits as its factorization.

866149411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 866149411 is about 29430.4164258680. The cubic root of 866149411 is about 953.2297866927.

The spelling of 866149411 in words is "eight hundred sixty-six million, one hundred forty-nine thousand, four hundred eleven".