266231641 has 8 divisors (see below), whose sum is σ = 292811904. Its totient is φ = 240522960.

The previous prime is 266231639. The next prime is 266231671. The reversal of 266231641 is 146132662.

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 266231641 - 2¹ = 266231639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266231621) 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, 217255 + ... + 218476.

It is an arithmetic number, because the mean of its divisors is an integer number (36601488).

Almost surely, 2^266231641 is an apocalyptic number.

It is an amenable number.

266231641 is a deficient number, since it is larger than the sum of its proper divisors (26580263).

266231641 is a wasteful number, since it uses less digits than its factorization.

266231641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435791.

The product of its digits is 10368, while the sum is 31.

The square root of 266231641 is about 16316.6062954280. The cubic root of 266231641 is about 643.3093886823.

The spelling of 266231641 in words is "two hundred sixty-six million, two hundred thirty-one thousand, six hundred forty-one".