1373161400320 has 48 divisors (see below), whose sum is σ = 3294782798580. Its totient is φ = 549264556032.

The previous prime is 1373161400309. The next prime is 1373161400327. The reversal of 1373161400320 is 230041613731.

It can be written as a sum of positive squares in 2 ways, for example, as 1368937440256 + 4223960064 = 1170016^2 + 64992^2 .

It is a super-2 number, since 2×1373161400320² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1373161400327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67038657 + ... + 67059136.

Almost surely, 2^{1373161400320} is an apocalyptic number.

1373161400320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373161400320 is an abundant number, since it is smaller than the sum of its proper divisors (1921621398260).

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

1373161400320 is an equidigital number, since it uses as much as digits as its factorization.

1373161400320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134097820 (or 134097800 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 1373161400320 in words is "one trillion, three hundred seventy-three billion, one hundred sixty-one million, four hundred thousand, three hundred twenty".