11446133021551 has 2 divisors, whose sum is σ = 11446133021552. Its totient is φ = 11446133021550.

The previous prime is 11446133021483. The next prime is 11446133021569. The reversal of 11446133021551 is 15512033164411.

11446133021551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11446133021551 - 2⁷ = 11446133021423 is a prime.

It is a super-2 number, since 2×11446133021551² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11446133021551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11446133031551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5723066510775 + 5723066510776.

It is an arithmetic number, because the mean of its divisors is an integer number (5723066510776).

Almost surely, 2^{11446133021551} is an apocalyptic number.

11446133021551 is a deficient number, since it is larger than the sum of its proper divisors (1).

11446133021551 is an equidigital number, since it uses as much as digits as its factorization.

11446133021551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 11446133021551 its reverse (15512033164411), we get a palindrome (26958166185962).

The spelling of 11446133021551 in words is "eleven trillion, four hundred forty-six billion, one hundred thirty-three million, twenty-one thousand, five hundred fifty-one".