272166506 has 8 divisors (see below), whose sum is σ = 414942564. Its totient is φ = 133852320.

The previous prime is 272166497. The next prime is 272166509. The reversal of 272166506 is 605661272.

It can be written as a sum of positive squares in 2 ways, for example, as 246207481 + 25959025 = 15691^2 + 5095^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (272166509) 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, 1115315 + ... + 1115558.

Almost surely, 2^272166506 is an apocalyptic number.

272166506 is a deficient number, since it is larger than the sum of its proper divisors (142776058).

272166506 is a wasteful number, since it uses less digits than its factorization.

272166506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230936.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 272166506 is about 16497.4696847729. The cubic root of 272166506 is about 648.0545427976.

The spelling of 272166506 in words is "two hundred seventy-two million, one hundred sixty-six thousand, five hundred six".