1669196692 has 6 divisors (see below), whose sum is σ = 2921094218. Its totient is φ = 834598344.

The previous prime is 1669196653. The next prime is 1669196719. The reversal of 1669196692 is 2966919661.

It can be written as a sum of positive squares in only one way, i.e., 843553936 + 825642756 = 29044^2 + 28734^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208649583 + ... + 208649590.

Almost surely, 2^1669196692 is an apocalyptic number.

It is an amenable number.

1669196692 is a deficient number, since it is larger than the sum of its proper divisors (1251897526).

1669196692 is a wasteful number, since it uses less digits than its factorization.

1669196692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417299177 (or 417299175 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 55.

The square root of 1669196692 is about 40855.8036513786. The cubic root of 1669196692 is about 1186.2307335267.

The spelling of 1669196692 in words is "one billion, six hundred sixty-nine million, one hundred ninety-six thousand, six hundred ninety-two".