1667332164 has 12 divisors (see below), whose sum is σ = 3890441744. Its totient is φ = 555777384.

The previous prime is 1667332159. The next prime is 1667332187. The reversal of 1667332164 is 4612337661.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69472162 + ... + 69472185.

Almost surely, 2^1667332164 is an apocalyptic number.

It is an amenable number.

1667332164 is an abundant number, since it is smaller than the sum of its proper divisors (2223109580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1667332164 is a wasteful number, since it uses less digits than its factorization.

1667332164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138944354 (or 138944352 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 1667332164 is about 40832.9788773731. The cubic root of 1667332164 is about 1185.7888873646.

The spelling of 1667332164 in words is "one billion, six hundred sixty-seven million, three hundred thirty-two thousand, one hundred sixty-four".