66131332 has 12 divisors (see below), whose sum is σ = 116424000. Its totient is φ = 32867336.

The previous prime is 66131327. The next prime is 66131341. The reversal of 66131332 is 23313166.

It is a junction number, because it is equal to n+sod(n) for n = 66131297 and 66131306.

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, 48832 + ... + 50167.

It is an arithmetic number, because the mean of its divisors is an integer number (9702000).

Almost surely, 2^66131332 is an apocalyptic number.

It is an amenable number.

66131332 is a deficient number, since it is larger than the sum of its proper divisors (50292668).

66131332 is a wasteful number, since it uses less digits than its factorization.

66131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99170 (or 99168 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 66131332 is about 8132.1173134676. The cubic root of 66131332 is about 404.3918770542.

Adding to 66131332 its reverse (23313166), we get a palindrome (89444498).

The spelling of 66131332 in words is "sixty-six million, one hundred thirty-one thousand, three hundred thirty-two".