266160431 has 4 divisors (see below), whose sum is σ = 266811600. Its totient is φ = 265509264.

The previous prime is 266160421. The next prime is 266160473. The reversal of 266160431 is 134061662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 266160431 - 2²² = 261966127 is a prime.

It is a super-2 number, since 2×266160431² = 141682750060211522, 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 = 266160394 and 266160403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266160421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324971 + ... + 325788.

It is an arithmetic number, because the mean of its divisors is an integer number (66702900).

Almost surely, 2^266160431 is an apocalyptic number.

266160431 is a deficient number, since it is larger than the sum of its proper divisors (651169).

266160431 is an equidigital number, since it uses as much as digits as its factorization.

266160431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651168.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 266160431 is about 16314.4240168018. The cubic root of 266160431 is about 643.2520274231.

The spelling of 266160431 in words is "two hundred sixty-six million, one hundred sixty thousand, four hundred thirty-one".