266052164640616 has 8 divisors (see below), whose sum is σ = 498847808701170. Its totient is φ = 133026082320304.

The previous prime is 266052164640599. The next prime is 266052164640653. The reversal of 266052164640616 is 616046461250662.

It can be written as a sum of positive squares in only one way, i.e., 204811304112900 + 61240860527716 = 14311230^2 + 7825654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16628260290031 + ... + 16628260290046.

Almost surely, 2^{266052164640616} is an apocalyptic number.

It is an amenable number.

266052164640616 is a deficient number, since it is larger than the sum of its proper divisors (232795644060554).

266052164640616 is a wasteful number, since it uses less digits than its factorization.

266052164640616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33256520580083 (or 33256520580079 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 266052164640616 in words is "two hundred sixty-six trillion, fifty-two billion, one hundred sixty-four million, six hundred forty thousand, six hundred sixteen".