1329125394320 has 80 divisors (see below), whose sum is σ = 3230279915520. Its totient is φ = 507987417600.

The previous prime is 1329125394287. The next prime is 1329125394343. The reversal of 1329125394320 is 234935219231.

It is a tau number, because it is divible by the number of its divisors (80).

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, 3196091 + ... + 3587930.

It is an arithmetic number, because the mean of its divisors is an integer number (40378498944).

Almost surely, 2^{1329125394320} is an apocalyptic number.

1329125394320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329125394320 is an abundant number, since it is smaller than the sum of its proper divisors (1901154521200).

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

1329125394320 is a wasteful number, since it uses less digits than its factorization.

1329125394320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784144 (or 6784138 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 1329125394320 in words is "one trillion, three hundred twenty-nine billion, one hundred twenty-five million, three hundred ninety-four thousand, three hundred twenty".