9665551151 has 2 divisors, whose sum is σ = 9665551152. Its totient is φ = 9665551150.

The previous prime is 9665551111. The next prime is 9665551169. The reversal of 9665551151 is 1511555669.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9665551151 - 2¹⁰ = 9665550127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9665551111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832775575 + 4832775576.

It is an arithmetic number, because the mean of its divisors is an integer number (4832775576).

Almost surely, 2^9665551151 is an apocalyptic number.

9665551151 is a deficient number, since it is larger than the sum of its proper divisors (1).

9665551151 is an equidigital number, since it uses as much as digits as its factorization.

9665551151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 202500, while the sum is 44.

The square root of 9665551151 is about 98313.5349328870. The cubic root of 9665551151 is about 2130.1435649374.

The spelling of 9665551151 in words is "nine billion, six hundred sixty-five million, five hundred fifty-one thousand, one hundred fifty-one".