166079471 has 4 divisors (see below), whose sum is σ = 166922712. Its totient is φ = 165236232.

The previous prime is 166079461. The next prime is 166079509. The reversal of 166079471 is 174970661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174970661 = 863 ⋅202747.

It is a cyclic number.

It is not a de Polignac number, because 166079471 - 2¹⁴ = 166063087 is a prime.

It is a super-3 number, since 3×166079471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166079401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421325 + ... + 421718.

It is an arithmetic number, because the mean of its divisors is an integer number (41730678).

Almost surely, 2^166079471 is an apocalyptic number.

166079471 is a deficient number, since it is larger than the sum of its proper divisors (843241).

166079471 is an equidigital number, since it uses as much as digits as its factorization.

166079471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843240.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 166079471 is about 12887.1824306169. The cubic root of 166079471 is about 549.6741552023.

The spelling of 166079471 in words is "one hundred sixty-six million, seventy-nine thousand, four hundred seventy-one".