272643066 has 12 divisors (see below), whose sum is σ = 590726682. Its totient is φ = 90881016.

The previous prime is 272643061. The next prime is 272643089. The reversal of 272643066 is 660346272.

It is a happy number.

272643066 is a `hidden beast` number, since 2 + 7 + 2 + 643 + 0 + 6 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 236390625 + 36252441 = 15375^2 + 6021^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 272643066.

It is not an unprimeable number, because it can be changed into a prime (272643061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7573401 + ... + 7573436.

Almost surely, 2^272643066 is an apocalyptic number.

272643066 is an abundant number, since it is smaller than the sum of its proper divisors (318083616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272643066 is a wasteful number, since it uses less digits than its factorization.

272643066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15146845 (or 15146842 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 272643066 is about 16511.9067947951. The cubic root of 272643066 is about 648.4325672603.

The spelling of 272643066 in words is "two hundred seventy-two million, six hundred forty-three thousand, sixty-six".