1666832396 has 6 divisors (see below), whose sum is σ = 2916956700. Its totient is φ = 833416196.

The previous prime is 1666832389. The next prime is 1666832441. The reversal of 1666832396 is 6932386661.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208354046 + ... + 208354053.

It is an arithmetic number, because the mean of its divisors is an integer number (486159450).

Almost surely, 2^1666832396 is an apocalyptic number.

It is an amenable number.

1666832396 is a deficient number, since it is larger than the sum of its proper divisors (1250124304).

1666832396 is a wasteful number, since it uses less digits than its factorization.

1666832396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416708103 (or 416708101 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 50.

The square root of 1666832396 is about 40826.8587574405. The cubic root of 1666832396 is about 1185.6703989646.

The spelling of 1666832396 in words is "one billion, six hundred sixty-six million, eight hundred thirty-two thousand, three hundred ninety-six".