65165651 has 2 divisors, whose sum is σ = 65165652. Its totient is φ = 65165650.

The previous prime is 65165623. The next prime is 65165663. The reversal of 65165651 is 15656156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65165651 - 2⁶ = 65165587 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65165671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32582825 + 32582826.

It is an arithmetic number, because the mean of its divisors is an integer number (32582826).

Almost surely, 2^65165651 is an apocalyptic number.

65165651 is a deficient number, since it is larger than the sum of its proper divisors (1).

65165651 is an equidigital number, since it uses as much as digits as its factorization.

65165651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 35.

The square root of 65165651 is about 8072.5244502572. The cubic root of 65165651 is about 402.4138436788.

It can be divided in two parts, 6516 and 5651, that added together give a cube (12167 = 23³).

The spelling of 65165651 in words is "sixty-five million, one hundred sixty-five thousand, six hundred fifty-one".