1330423600640 has 160 divisors (see below), whose sum is σ = 3263662005120. Its totient is φ = 519904559104.

The previous prime is 1330423600637. The next prime is 1330423600697. The reversal of 1330423600640 is 460063240331.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1330423600597 and 1330423600606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68452364 + ... + 68471796.

It is an arithmetic number, because the mean of its divisors is an integer number (20397887532).

Almost surely, 2^{1330423600640} is an apocalyptic number.

1330423600640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1330423600640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1631831002560).

1330423600640 is an abundant number, since it is smaller than the sum of its proper divisors (1933238404480).

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

1330423600640 is an equidigital number, since it uses as much as digits as its factorization.

1330423600640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072 (or 20056 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 1330423600640 its reverse (460063240331), we get a palindrome (1790486840971).

The spelling of 1330423600640 in words is "one trillion, three hundred thirty billion, four hundred twenty-three million, six hundred thousand, six hundred forty".