1316402305666 has 32 divisors (see below), whose sum is σ = 2339093376000. Its totient is φ = 543647936832.

The previous prime is 1316402305661. The next prime is 1316402305667. The reversal of 1316402305666 is 6665032046131.

It is not an unprimeable number, because it can be changed into a prime (1316402305661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2978386 + ... + 3391693.

It is an arithmetic number, because the mean of its divisors is an integer number (73096668000).

Almost surely, 2^{1316402305666} is an apocalyptic number.

1316402305666 is a deficient number, since it is larger than the sum of its proper divisors (1022691070334).

1316402305666 is a wasteful number, since it uses less digits than its factorization.

1316402305666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6370626.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 1316402305666 in words is "one trillion, three hundred sixteen billion, four hundred two million, three hundred five thousand, six hundred sixty-six".