1665467016 has 32 divisors (see below), whose sum is σ = 4408590240. Its totient is φ = 522499328.

The previous prime is 1665467009. The next prime is 1665467017. The reversal of 1665467016 is 6107645661.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1665467017) 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, 2040606 + ... + 2041421.

It is an arithmetic number, because the mean of its divisors is an integer number (137768445).

Almost surely, 2^1665467016 is an apocalyptic number.

It is an amenable number.

1665467016 is an abundant number, since it is smaller than the sum of its proper divisors (2743123224).

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

1665467016 is a wasteful number, since it uses less digits than its factorization.

1665467016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082053 (or 4082049 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1665467016 is about 40810.1337415108. The cubic root of 1665467016 is about 1185.3465645885.

The spelling of 1665467016 in words is "one billion, six hundred sixty-five million, four hundred sixty-seven thousand, sixteen".