166075677 has 28 divisors (see below), whose sum is σ = 250056540. Its totient is φ = 110248128.

The previous prime is 166075673. The next prime is 166075681. The reversal of 166075677 is 776570661.

It is an interprime number because it is at equal distance from previous prime (166075673) and next prime (166075681).

It can be written as a sum of positive squares in 2 ways, for example, as 83283876 + 82791801 = 9126^2 + 9099^2 .

It is not a de Polignac number, because 166075677 - 2² = 166075673 is a prime.

It is a super-2 number, since 2×166075677² = 55162260982016658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166075673) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 297883 + ... + 298439.

Almost surely, 2^166075677 is an apocalyptic number.

It is an amenable number.

166075677 is a deficient number, since it is larger than the sum of its proper divisors (83980863).

166075677 is an frugal number, since it uses more digits than its factorization.

166075677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 166075677 is about 12887.0352292527. The cubic root of 166075677 is about 549.6699694961.

The spelling of 166075677 in words is "one hundred sixty-six million, seventy-five thousand, six hundred seventy-seven".