65163811 has 2 divisors, whose sum is σ = 65163812. Its totient is φ = 65163810.

The previous prime is 65163803. The next prime is 65163817. The reversal of 65163811 is 11836156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65163811 - 2³ = 65163803 is a prime.

It is not a weakly prime, because it can be changed into another prime (65163817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32581905 + 32581906.

It is an arithmetic number, because the mean of its divisors is an integer number (32581906).

Almost surely, 2^65163811 is an apocalyptic number.

65163811 is a deficient number, since it is larger than the sum of its proper divisors (1).

65163811 is an equidigital number, since it uses as much as digits as its factorization.

65163811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 65163811 is about 8072.4104826254. The cubic root of 65163811 is about 402.4100561597.

Adding to 65163811 its reverse (11836156), we get a palindrome (76999967).

The spelling of 65163811 in words is "sixty-five million, one hundred sixty-three thousand, eight hundred eleven".