266015461260664 has 16 divisors (see below), whose sum is σ = 498808945010520. Its totient is φ = 132999742591200.

The previous prime is 266015461260641. The next prime is 266015461260673. The reversal of 266015461260664 is 466062164510662.

It is a congruent number.

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, 998363359 + ... + 998629774.

Almost surely, 2^{266015461260664} is an apocalyptic number.

It is an amenable number.

266015461260664 is a deficient number, since it is larger than the sum of its proper divisors (232793483749856).

266015461260664 is a wasteful number, since it uses less digits than its factorization.

266015461260664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997009790 (or 1997009786 counting only the distinct ones).

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

The spelling of 266015461260664 in words is "two hundred sixty-six trillion, fifteen billion, four hundred sixty-one million, two hundred sixty thousand, six hundred sixty-four".