11397199500545 has 4 divisors (see below), whose sum is σ = 13676639400660. Its totient is φ = 9117759600432.

The previous prime is 11397199500509. The next prime is 11397199500553. The reversal of 11397199500545 is 54500599179311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2727042693376 + 8670156807169 = 1651376^2 + 2944513^2 .

It is a cyclic number.

It is not a de Polignac number, because 11397199500545 - 2²⁶ = 11397132391681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139719950050 + ... + 1139719950059.

It is an arithmetic number, because the mean of its divisors is an integer number (3419159850165).

Almost surely, 2^{11397199500545} is an apocalyptic number.

It is an amenable number.

11397199500545 is a deficient number, since it is larger than the sum of its proper divisors (2279439900115).

11397199500545 is an equidigital number, since it uses as much as digits as its factorization.

11397199500545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279439900114.

The product of its (nonzero) digits is 7654500, while the sum is 59.

The spelling of 11397199500545 in words is "eleven trillion, three hundred ninety-seven billion, one hundred ninety-nine million, five hundred thousand, five hundred forty-five".