272661010191 has 20 divisors (see below), whose sum is σ = 408635197432. Its totient is φ = 181181892528.

The previous prime is 272661010159. The next prime is 272661010243. The reversal of 272661010191 is 191010166272.

272661010191 is a `hidden beast` number, since 2 + 7 + 26 + 610 + 1 + 0 + 19 + 1 = 666.

It is not a de Polignac number, because 272661010191 - 2⁵ = 272661010159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272661010151) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5457520 + ... + 5507253.

Almost surely, 2^272661010191 is an apocalyptic number.

272661010191 is a deficient number, since it is larger than the sum of its proper divisors (135974187241).

272661010191 is a wasteful number, since it uses less digits than its factorization.

272661010191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965092 (or 10965083 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 272661010191 in words is "two hundred seventy-two billion, six hundred sixty-one million, ten thousand, one hundred ninety-one".