266650231 has 8 divisors (see below), whose sum is σ = 274308624. Its totient is φ = 259015680.

The previous prime is 266650207. The next prime is 266650277. The reversal of 266650231 is 132056662.

266650231 = T₃₇₇₈ + T₃₇₇₉ + ... + T₃₈₁₄.

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 266650231 - 2⁷ = 266650103 is a prime.

It is a super-2 number, since 2×266650231² = 142204691384706722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266650193 and 266650202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266650031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18096 + ... + 29338.

It is an arithmetic number, because the mean of its divisors is an integer number (34288578).

Almost surely, 2^266650231 is an apocalyptic number.

266650231 is a deficient number, since it is larger than the sum of its proper divisors (7658393).

266650231 is a wasteful number, since it uses less digits than its factorization.

266650231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 266650231 is about 16329.4283733387. The cubic root of 266650231 is about 643.6463657473.

The spelling of 266650231 in words is "two hundred sixty-six million, six hundred fifty thousand, two hundred thirty-one".