11451456064544 has 12 divisors (see below), whose sum is σ = 22545054127134. Its totient is φ = 5725728032256.

The previous prime is 11451456064481. The next prime is 11451456064549. The reversal of 11451456064544 is 44546065415411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10989888010000 + 461568054544 = 3315100^2 + 679388^2 .

It is a super-2 number, since 2×11451456064544² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451456064492 and 11451456064501.

It is not an unprimeable number, because it can be changed into a prime (11451456064549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178929000977 + ... + 178929001040.

Almost surely, 2^{11451456064544} is an apocalyptic number.

It is an amenable number.

11451456064544 is a deficient number, since it is larger than the sum of its proper divisors (11093598062590).

11451456064544 is an equidigital number, since it uses as much as digits as its factorization.

11451456064544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357858002027 (or 357858002019 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 50.

The spelling of 11451456064544 in words is "eleven trillion, four hundred fifty-one billion, four hundred fifty-six million, sixty-four thousand, five hundred forty-four".