132331521651646 has 32 divisors (see below), whose sum is σ = 209589907968000. Its totient is φ = 62489888366400.

The previous prime is 132331521651631. The next prime is 132331521651649. The reversal of 132331521651646 is 646156125133231.

It is a self number, because there is not a number n which added to its sum of digits gives 132331521651646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132331521651649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28382946 + ... + 32714746.

It is an arithmetic number, because the mean of its divisors is an integer number (6549684624000).

Almost surely, 2^{132331521651646} is an apocalyptic number.

132331521651646 is a deficient number, since it is larger than the sum of its proper divisors (77258386316354).

132331521651646 is a wasteful number, since it uses less digits than its factorization.

132331521651646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334304.

The product of its digits is 2332800, while the sum is 49.

Adding to 132331521651646 its reverse (646156125133231), we get a palindrome (778487646784877).

The spelling of 132331521651646 in words is "one hundred thirty-two trillion, three hundred thirty-one billion, five hundred twenty-one million, six hundred fifty-one thousand, six hundred forty-six".