1366002521606 has 8 divisors (see below), whose sum is σ = 2061273266640. Its totient is φ = 678911432728.

The previous prime is 1366002521567. The next prime is 1366002521617. The reversal of 1366002521606 is 6061252006631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1366002521606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044913621 + ... + 2044914288.

It is an arithmetic number, because the mean of its divisors is an integer number (257659158330).

Almost surely, 2^{1366002521606} is an apocalyptic number.

1366002521606 is a deficient number, since it is larger than the sum of its proper divisors (695270745034).

1366002521606 is a wasteful number, since it uses less digits than its factorization.

1366002521606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089828078.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 1366002521606 in words is "one trillion, three hundred sixty-six billion, two million, five hundred twenty-one thousand, six hundred six".