166162775 has 6 divisors (see below), whose sum is σ = 206041872. Its totient is φ = 132930200.

The previous prime is 166162757. The next prime is 166162783. The reversal of 166162775 is 577261661.

It is not a de Polignac number, because 166162775 - 2⁸ = 166162519 is a prime.

It is a super-2 number, since 2×166162775² = 55220135591401250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3323231 + ... + 3323280.

It is an arithmetic number, because the mean of its divisors is an integer number (34340312).

Almost surely, 2^166162775 is an apocalyptic number.

166162775 is a deficient number, since it is larger than the sum of its proper divisors (39879097).

166162775 is an equidigital number, since it uses as much as digits as its factorization.

166162775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6646521 (or 6646516 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 166162775 is about 12890.4140740319. The cubic root of 166162775 is about 549.7660437457.

It can be divided in two parts, 16616 and 2775, that added together give a palindrome (19391).

The spelling of 166162775 in words is "one hundred sixty-six million, one hundred sixty-two thousand, seven hundred seventy-five".