1326132660 has 24 divisors (see below), whose sum is σ = 3713171616. Its totient is φ = 353635360.

The previous prime is 1326132653. The next prime is 1326132671. The reversal of 1326132660 is 662316231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11051046 + ... + 11051165.

It is an arithmetic number, because the mean of its divisors is an integer number (154715484).

Almost surely, 2^1326132660 is an apocalyptic number.

1326132660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326132660 is an abundant number, since it is smaller than the sum of its proper divisors (2387038956).

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

1326132660 is a wasteful number, since it uses less digits than its factorization.

1326132660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22102223 (or 22102221 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1326132660 is about 36416.1044045076. The cubic root of 1326132660 is about 1098.6574971857.

Adding to 1326132660 its reverse (662316231), we get a palindrome (1988448891).

The spelling of 1326132660 in words is "one billion, three hundred twenty-six million, one hundred thirty-two thousand, six hundred sixty".