1329520473776 has 20 divisors (see below), whose sum is σ = 2810122819944. Its totient is φ = 604327488000.

The previous prime is 1329520473761. The next prime is 1329520473803. The reversal of 1329520473776 is 6773740259231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3777046625 + ... + 3777046976.

Almost surely, 2^{1329520473776} is an apocalyptic number.

1329520473776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1329520473776 is an abundant number, since it is smaller than the sum of its proper divisors (1480602346168).

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

1329520473776 is a wasteful number, since it uses less digits than its factorization.

1329520473776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554093620 (or 7554093614 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 56.

The spelling of 1329520473776 in words is "one trillion, three hundred twenty-nine billion, five hundred twenty million, four hundred seventy-three thousand, seven hundred seventy-six".