166164533 has 2 divisors, whose sum is σ = 166164534. Its totient is φ = 166164532.

The previous prime is 166164497. The next prime is 166164553. The reversal of 166164533 is 335461661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153190129 + 12974404 = 12377^2 + 3602^2 .

It is a cyclic number.

It is not a de Polignac number, because 166164533 - 2⁶ = 166164469 is a prime.

It is a super-2 number, since 2×166164533² = 55221304054216178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166164493 and 166164502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166164553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83082266 + 83082267.

It is an arithmetic number, because the mean of its divisors is an integer number (83082267).

Almost surely, 2^166164533 is an apocalyptic number.

It is an amenable number.

166164533 is a deficient number, since it is larger than the sum of its proper divisors (1).

166164533 is an equidigital number, since it uses as much as digits as its factorization.

166164533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 35.

The square root of 166164533 is about 12890.4822640582. The cubic root of 166164533 is about 549.7679825780.

The spelling of 166164533 in words is "one hundred sixty-six million, one hundred sixty-four thousand, five hundred thirty-three".