1386665006 has 4 divisors (see below), whose sum is σ = 2079997512. Its totient is φ = 693332502.

The previous prime is 1386664987. The next prime is 1386665039. The reversal of 1386665006 is 6005666831.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346666250 + ... + 346666253.

It is an arithmetic number, because the mean of its divisors is an integer number (519999378).

Almost surely, 2^1386665006 is an apocalyptic number.

1386665006 is a deficient number, since it is larger than the sum of its proper divisors (693332506).

1386665006 is an equidigital number, since it uses as much as digits as its factorization.

1386665006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693332505.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1386665006 is about 37237.9511520169. The cubic root of 1386665006 is about 1115.1257691588.

The spelling of 1386665006 in words is "one billion, three hundred eighty-six million, six hundred sixty-five thousand, six".