1320544145600 has 42 divisors (see below), whose sum is σ = 3249363942204. Its totient is φ = 528217657600.

The previous prime is 1320544145561. The next prime is 1320544145621. The reversal of 1320544145600 is 65414450231.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412668446 + ... + 412671645.

Almost surely, 2^{1320544145600} is an apocalyptic number.

1320544145600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320544145600 is an abundant number, since it is smaller than the sum of its proper divisors (1928819796604).

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

1320544145600 is an equidigital number, since it uses as much as digits as its factorization.

1320544145600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825340113 (or 825340098 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1320544145600 its reverse (65414450231), we get a palindrome (1385958595831).

The spelling of 1320544145600 in words is "one trillion, three hundred twenty billion, five hundred forty-four million, one hundred forty-five thousand, six hundred".