6661272 has 32 divisors (see below), whose sum is σ = 16717680. Its totient is φ = 2211840.

The previous prime is 6661243. The next prime is 6661273. The reversal of 6661272 is 2721666.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10072 + ... + 10712.

Almost surely, 2^6661272 is an apocalyptic number.

It is an amenable number.

6661272 is an abundant number, since it is smaller than the sum of its proper divisors (10056408).

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

6661272 is a wasteful number, since it uses less digits than its factorization.

6661272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1079 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 6661272 is about 2580.9440133409. The cubic root of 6661272 is about 188.1564263199.

The spelling of 6661272 in words is "six million, six hundred sixty-one thousand, two hundred seventy-two".