132401666 has 8 divisors (see below), whose sum is σ = 199002000. Its totient is φ = 66067668.

The previous prime is 132401653. The next prime is 132401677. The reversal of 132401666 is 666104231.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65336 + ... + 67331.

It is an arithmetic number, because the mean of its divisors is an integer number (24875250).

Almost surely, 2^132401666 is an apocalyptic number.

132401666 is a deficient number, since it is larger than the sum of its proper divisors (66600334).

132401666 is a wasteful number, since it uses less digits than its factorization.

132401666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133168.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 132401666 is about 11506.5922844255. The cubic root of 132401666 is about 509.6802635123.

Adding to 132401666 its reverse (666104231), we get a palindrome (798505897).

The spelling of 132401666 in words is "one hundred thirty-two million, four hundred one thousand, six hundred sixty-six".