11554432061 has 2 divisors, whose sum is σ = 11554432062. Its totient is φ = 11554432060.

The previous prime is 11554432049. The next prime is 11554432067. The reversal of 11554432061 is 16023445511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9512295961 + 2042136100 = 97531^2 + 45190^2 .

It is an emirp because it is prime and its reverse (16023445511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11554432061 - 2¹⁰ = 11554431037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11554432067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777216030 + 5777216031.

It is an arithmetic number, because the mean of its divisors is an integer number (5777216031).

Almost surely, 2^11554432061 is an apocalyptic number.

It is an amenable number.

11554432061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11554432061 is an equidigital number, since it uses as much as digits as its factorization.

11554432061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 11554432061 its reverse (16023445511), we get a palindrome (27577877572).

The spelling of 11554432061 in words is "eleven billion, five hundred fifty-four million, four hundred thirty-two thousand, sixty-one".