166070001 has 4 divisors (see below), whose sum is σ = 221426672. Its totient is φ = 110713332.

The previous prime is 166069993. The next prime is 166070017. The reversal of 166070001 is 100070661.

166070001 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.

It is not a de Polignac number, because 166070001 - 2³ = 166069993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166070001.

It is not an unprimeable number, because it can be changed into a prime (166070071) 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, 27678331 + ... + 27678336.

It is an arithmetic number, because the mean of its divisors is an integer number (55356668).

Almost surely, 2^166070001 is an apocalyptic number.

It is an amenable number.

166070001 is a deficient number, since it is larger than the sum of its proper divisors (55356671).

166070001 is an equidigital number, since it uses as much as digits as its factorization.

166070001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55356670.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 166070001 is about 12886.8150060440. The cubic root of 166070001 is about 549.6637073664.

The spelling of 166070001 in words is "one hundred sixty-six million, seventy thousand, one".