166470087 has 16 divisors (see below), whose sum is σ = 253955072. Its totient is φ = 95018400.

The previous prime is 166470049. The next prime is 166470091. The reversal of 166470087 is 780074661.

166470087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166470087 - 2⁶ = 166470023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166470047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16962 + ... + 24912.

It is an arithmetic number, because the mean of its divisors is an integer number (15872192).

Almost surely, 2^166470087 is an apocalyptic number.

166470087 is a deficient number, since it is larger than the sum of its proper divisors (87484985).

166470087 is an equidigital number, since it uses as much as digits as its factorization.

166470087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 166470087 is about 12902.3287432928. The cubic root of 166470087 is about 550.1047591085.

The spelling of 166470087 in words is "one hundred sixty-six million, four hundred seventy thousand, eighty-seven".