1356081611680 has 48 divisors (see below), whose sum is σ = 3203853677640. Its totient is φ = 542413873152.

The previous prime is 1356081611671. The next prime is 1356081611683. The reversal of 1356081611680 is 861161806531.

It can be written as a sum of positive squares in 4 ways, for example, as 1246607978256 + 109473633424 = 1116516^2 + 330868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1356081611680.

It is not an unprimeable number, because it can be changed into a prime (1356081611683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5069116 + ... + 5329924.

Almost surely, 2^{1356081611680} is an apocalyptic number.

1356081611680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1356081611680 is an abundant number, since it is smaller than the sum of its proper divisors (1847772065960).

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

1356081611680 is a wasteful number, since it uses less digits than its factorization.

1356081611680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293321 (or 293313 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 1356081611680 in words is "one trillion, three hundred fifty-six billion, eighty-one million, six hundred eleven thousand, six hundred eighty".