11554530545444 has 12 divisors (see below), whose sum is σ = 20223410426268. Its totient is φ = 5776413280800.

The previous prime is 11554530545333. The next prime is 11554530545447. The reversal of 11554530545444 is 44454503545511.

It can be written as a sum of positive squares in 2 ways, for example, as 7597255841344 + 3957274704100 = 2756312^2 + 1989290^2 .

It is a super-2 number, since 2×11554530545444² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11554530545392 and 11554530545401.

It is not an unprimeable number, because it can be changed into a prime (11554530545447) 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, 212967467 + ... + 213021714.

It is an arithmetic number, because the mean of its divisors is an integer number (1685284202189).

Almost surely, 2^{11554530545444} is an apocalyptic number.

It is an amenable number.

11554530545444 is a deficient number, since it is larger than the sum of its proper divisors (8668879880824).

11554530545444 is a wasteful number, since it uses less digits than its factorization.

11554530545444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425995966 (or 425995964 counting only the distinct ones).

The product of its (nonzero) digits is 9600000, while the sum is 50.

The spelling of 11554530545444 in words is "eleven trillion, five hundred fifty-four billion, five hundred thirty million, five hundred forty-five thousand, four hundred forty-four".