1660167 has 6 divisors (see below), whose sum is σ = 2398032. Its totient is φ = 1106772.

The previous prime is 1660133. The next prime is 1660177. The reversal of 1660167 is 7610661.

It is not a de Polignac number, because 1660167 - 2⁶ = 1660103 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1660167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92223 + ... + 92240.

It is an arithmetic number, because the mean of its divisors is an integer number (399672).

2^1660167 is an apocalyptic number.

1660167 is a deficient number, since it is larger than the sum of its proper divisors (737865).

1660167 is a wasteful number, since it uses less digits than its factorization.

1660167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184469 (or 184466 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1660167 is about 1288.4746796115. The cubic root of 1660167 is about 118.4087852244.

The spelling of 1660167 in words is "one million, six hundred sixty thousand, one hundred sixty-seven".