272666331 has 30 divisors (see below), whose sum is σ = 473823900. Its totient is φ = 155807064.

The previous prime is 272666327. The next prime is 272666351. The reversal of 272666331 is 133666272.

It is not a de Polignac number, because 272666331 - 2² = 272666327 is a prime.

It is a super-2 number, since 2×272666331² = 148693856122003122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (272666351) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 30381 + ... + 38318.

It is an arithmetic number, because the mean of its divisors is an integer number (15794130).

Almost surely, 2^272666331 is an apocalyptic number.

272666331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

272666331 is a deficient number, since it is larger than the sum of its proper divisors (201157569).

272666331 is an equidigital number, since it uses as much as digits as its factorization.

272666331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68725 (or 68709 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 272666331 is about 16512.6112713889. The cubic root of 272666331 is about 648.4510106104.

The spelling of 272666331 in words is "two hundred seventy-two million, six hundred sixty-six thousand, three hundred thirty-one".