11432202557 has 4 divisors (see below), whose sum is σ = 11434943676. Its totient is φ = 11429461440.

The previous prime is 11432202553. The next prime is 11432202559. The reversal of 11432202557 is 75520223411.

11432202557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11138902681 + 293299876 = 105541^2 + 17126^2 .

It is a cyclic number.

It is not a de Polignac number, because 11432202557 - 2² = 11432202553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11432202553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364294 + ... + 1372647.

It is an arithmetic number, because the mean of its divisors is an integer number (2858735919).

Almost surely, 2^11432202557 is an apocalyptic number.

It is an amenable number.

11432202557 is a deficient number, since it is larger than the sum of its proper divisors (2741119).

11432202557 is an equidigital number, since it uses as much as digits as its factorization.

11432202557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741118.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 11432202557 its reverse (75520223411), we get a palindrome (86952425968).

The spelling of 11432202557 in words is "eleven billion, four hundred thirty-two million, two hundred two thousand, five hundred fifty-seven".