166361633 has 2 divisors, whose sum is σ = 166361634. Its totient is φ = 166361632.

The previous prime is 166361627. The next prime is 166361639. The reversal of 166361633 is 336163661.

166361633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (166361627) and next prime (166361639).

It can be written as a sum of positive squares in only one way, i.e., 113465104 + 52896529 = 10652^2 + 7273^2 .

It is a cyclic number.

It is not a de Polignac number, because 166361633 - 2¹² = 166357537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166361593 and 166361602.

It is not a weakly prime, because it can be changed into another prime (166361639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83180816 + 83180817.

It is an arithmetic number, because the mean of its divisors is an integer number (83180817).

Almost surely, 2^166361633 is an apocalyptic number.

It is an amenable number.

166361633 is a deficient number, since it is larger than the sum of its proper divisors (1).

166361633 is an equidigital number, since it uses as much as digits as its factorization.

166361633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 35.

The square root of 166361633 is about 12898.1251738383. The cubic root of 166361633 is about 549.9852701289.

The spelling of 166361633 in words is "one hundred sixty-six million, three hundred sixty-one thousand, six hundred thirty-three".