316661511053666 has 128 divisors (see below), whose sum is σ = 531669978316800. Its totient is φ = 140763252168000.

The previous prime is 316661511053651. The next prime is 316661511053681. The reversal of 316661511053666 is 666350115166613.

It is an interprime number because it is at equal distance from previous prime (316661511053651) and next prime (316661511053681).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23299346531 + ... + 23299360121.

It is an arithmetic number, because the mean of its divisors is an integer number (4153671705600).

Almost surely, 2^{316661511053666} is an apocalyptic number.

316661511053666 is a deficient number, since it is larger than the sum of its proper divisors (215008467263134).

316661511053666 is a wasteful number, since it uses less digits than its factorization.

316661511053666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15516.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 316661511053666 in words is "three hundred sixteen trillion, six hundred sixty-one billion, five hundred eleven million, fifty-three thousand, six hundred sixty-six".