1361203076666 has 16 divisors (see below), whose sum is σ = 2043361345248. Its totient is φ = 680082740400.

The previous prime is 1361203076659. The next prime is 1361203076719. The reversal of 1361203076666 is 6666703021631.

It is a self number, because there is not a number n which added to its sum of digits gives 1361203076666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30332441 + ... + 30377283.

It is an arithmetic number, because the mean of its divisors is an integer number (127710084078).

Almost surely, 2^{1361203076666} is an apocalyptic number.

1361203076666 is a deficient number, since it is larger than the sum of its proper divisors (682158268582).

1361203076666 is a wasteful number, since it uses less digits than its factorization.

1361203076666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56077.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 1361203076666 in words is "one trillion, three hundred sixty-one billion, two hundred three million, seventy-six thousand, six hundred sixty-six".