633416165989 has 2 divisors, whose sum is σ = 633416165990. Its totient is φ = 633416165988.

The previous prime is 633416165981. The next prime is 633416166037. The reversal of 633416165989 is 989561614336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623823530625 + 9592635364 = 789825^2 + 97942^2 .

It is a cyclic number.

It is not a de Polignac number, because 633416165989 - 2³ = 633416165981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633416165981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316708082994 + 316708082995.

It is an arithmetic number, because the mean of its divisors is an integer number (316708082995).

Almost surely, 2^633416165989 is an apocalyptic number.

It is an amenable number.

633416165989 is a deficient number, since it is larger than the sum of its proper divisors (1).

633416165989 is an equidigital number, since it uses as much as digits as its factorization.

633416165989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 61.

The spelling of 633416165989 in words is "six hundred thirty-three billion, four hundred sixteen million, one hundred sixty-five thousand, nine hundred eighty-nine".