1670505166 has 16 divisors (see below), whose sum is σ = 2734213248. Its totient is φ = 759137400.

The previous prime is 1670505143. The next prime is 1670505167. The reversal of 1670505166 is 6615050761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670505167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133561 + ... + 145531.

It is an arithmetic number, because the mean of its divisors is an integer number (170888328).

Almost surely, 2^1670505166 is an apocalyptic number.

1670505166 is a deficient number, since it is larger than the sum of its proper divisors (1063708082).

1670505166 is a wasteful number, since it uses less digits than its factorization.

1670505166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1670505166 is about 40871.8138330072. The cubic root of 1670505166 is about 1186.5406124607.

The spelling of 1670505166 in words is "one billion, six hundred seventy million, five hundred five thousand, one hundred sixty-six".