272366661 has 16 divisors (see below), whose sum is σ = 415563264. Its totient is φ = 155439984.

The previous prime is 272366623. The next prime is 272366663. The reversal of 272366661 is 166663272.

It is not a de Polignac number, because 272366661 - 2⁷ = 272366533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272366663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9526 + ... + 25208.

It is an arithmetic number, because the mean of its divisors is an integer number (25972704).

Almost surely, 2^272366661 is an apocalyptic number.

272366661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

272366661 is a deficient number, since it is larger than the sum of its proper divisors (143196603).

272366661 is a wasteful number, since it uses less digits than its factorization.

272366661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16520.

The product of its digits is 108864, while the sum is 39.

The square root of 272366661 is about 16503.5348031869. The cubic root of 272366661 is about 648.2133666180.

The spelling of 272366661 in words is "two hundred seventy-two million, three hundred sixty-six thousand, six hundred sixty-one".