266847045861 has 8 divisors (see below), whose sum is σ = 388141157664. Its totient is φ = 161725482320.

The previous prime is 266847045841. The next prime is 266847045893. The reversal of 266847045861 is 168540748662.

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

It is a cyclic number.

It is not a de Polignac number, because 266847045861 - 2⁶ = 266847045797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266847045841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043137026 + ... + 4043137091.

It is an arithmetic number, because the mean of its divisors is an integer number (48517644708).

Almost surely, 2^266847045861 is an apocalyptic number.

It is an amenable number.

266847045861 is a deficient number, since it is larger than the sum of its proper divisors (121294111803).

266847045861 is a wasteful number, since it uses less digits than its factorization.

266847045861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086274131.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 266847045861 in words is "two hundred sixty-six billion, eight hundred forty-seven million, forty-five thousand, eight hundred sixty-one".