266199485 has 8 divisors (see below), whose sum is σ = 319750200. Its totient is φ = 212752384.

The previous prime is 266199469. The next prime is 266199487. The reversal of 266199485 is 584991662.

It can be written as a sum of positive squares in 4 ways, for example, as 139546969 + 126652516 = 11813^2 + 11254^2 .

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 266199485 - 2⁴ = 266199469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266199487) 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, 20132 + ... + 30621.

It is an arithmetic number, because the mean of its divisors is an integer number (39968775).

Almost surely, 2^266199485 is an apocalyptic number.

It is an amenable number.

266199485 is a deficient number, since it is larger than the sum of its proper divisors (53550715).

266199485 is a wasteful number, since it uses less digits than its factorization.

266199485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51807.

The product of its digits is 933120, while the sum is 50.

The square root of 266199485 is about 16315.6208891970. The cubic root of 266199485 is about 643.2834875666.

The spelling of 266199485 in words is "two hundred sixty-six million, one hundred ninety-nine thousand, four hundred eighty-five".