66272732 has 12 divisors (see below), whose sum is σ = 122799600. Its totient is φ = 31187136.

The previous prime is 66272719. The next prime is 66272797. The reversal of 66272732 is 23727266.

It is a junction number, because it is equal to n+sod(n) for n = 66272692 and 66272701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487232 + ... + 487367.

It is an arithmetic number, because the mean of its divisors is an integer number (10233300).

Almost surely, 2^66272732 is an apocalyptic number.

It is an amenable number.

66272732 is a deficient number, since it is larger than the sum of its proper divisors (56526868).

66272732 is a wasteful number, since it uses less digits than its factorization.

66272732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974620 (or 974618 counting only the distinct ones).

The product of its digits is 42336, while the sum is 35.

The square root of 66272732 is about 8140.8065939439. The cubic root of 66272732 is about 404.6798913424.

Adding to 66272732 its reverse (23727266), we get a palindrome (89999998).

The spelling of 66272732 in words is "sixty-six million, two hundred seventy-two thousand, seven hundred thirty-two".