1366405655674 has 8 divisors (see below), whose sum is σ = 2050732794240. Its totient is φ = 682828057596.

The previous prime is 1366405655663. The next prime is 1366405655689. The reversal of 1366405655674 is 4765565046631.

It is a happy number.

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

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, 187380564 + ... + 187387855.

It is an arithmetic number, because the mean of its divisors is an integer number (256341599280).

Almost surely, 2^{1366405655674} is an apocalyptic number.

1366405655674 is a deficient number, since it is larger than the sum of its proper divisors (684327138566).

1366405655674 is a wasteful number, since it uses less digits than its factorization.

1366405655674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374770244.

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 1366405655674 in words is "one trillion, three hundred sixty-six billion, four hundred five million, six hundred fifty-five thousand, six hundred seventy-four".