1666502671132 has 24 divisors (see below), whose sum is σ = 3187592945936. Its totient is φ = 757675150848.

The previous prime is 1666502671129. The next prime is 1666502671151. The reversal of 1666502671132 is 2311762056661.

It is a super-2 number, since 2×1666502671132² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239161653 + ... + 239168620.

Almost surely, 2^{1666502671132} is an apocalyptic number.

It is an amenable number.

1666502671132 is a deficient number, since it is larger than the sum of its proper divisors (1521090274804).

1666502671132 is a wasteful number, since it uses less digits than its factorization.

1666502671132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478330357 (or 478330355 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 1666502671132 in words is "one trillion, six hundred sixty-six billion, five hundred two million, six hundred seventy-one thousand, one hundred thirty-two".