11451466450553 has 2 divisors, whose sum is σ = 11451466450554. Its totient is φ = 11451466450552.

The previous prime is 11451466450547. The next prime is 11451466450561. The reversal of 11451466450553 is 35505466415411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7841192845369 + 3610273605184 = 2800213^2 + 1900072^2 .

It is an emirp because it is prime and its reverse (35505466415411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11451466450553 - 2¹⁴ = 11451466434169 is a prime.

It is a super-2 number, since 2×11451466450553² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11451466450153) by changing a digit.

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 as a sum of consecutive naturals, namely, 5725733225276 + 5725733225277.

It is an arithmetic number, because the mean of its divisors is an integer number (5725733225277).

Almost surely, 2^{11451466450553} is an apocalyptic number.

It is an amenable number.

11451466450553 is a deficient number, since it is larger than the sum of its proper divisors (1).

11451466450553 is an equidigital number, since it uses as much as digits as its factorization.

11451466450553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 11451466450553 in words is "eleven trillion, four hundred fifty-one billion, four hundred sixty-six million, four hundred fifty thousand, five hundred fifty-three".