166302057 has 4 divisors (see below), whose sum is σ = 221736080. Its totient is φ = 110868036.

The previous prime is 166301999. The next prime is 166302067. The reversal of 166302057 is 750203661.

166302057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750203661 = 3 ⋅250067887.

It is not a de Polignac number, because 166302057 - 2¹⁴ = 166285673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166302067) 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, 27717007 + ... + 27717012.

It is an arithmetic number, because the mean of its divisors is an integer number (55434020).

Almost surely, 2^166302057 is an apocalyptic number.

It is an amenable number.

166302057 is a deficient number, since it is larger than the sum of its proper divisors (55434023).

166302057 is an equidigital number, since it uses as much as digits as its factorization.

166302057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55434022.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 166302057 is about 12895.8154841018. The cubic root of 166302057 is about 549.9196102891.

The spelling of 166302057 in words is "one hundred sixty-six million, three hundred two thousand, fifty-seven".