11626665620543 has 2 divisors, whose sum is σ = 11626665620544. Its totient is φ = 11626665620542.

The previous prime is 11626665620527. The next prime is 11626665620561. The reversal of 11626665620543 is 34502656662611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11626665620543 - 2⁴ = 11626665620527 is a prime.

It is a super-2 number, since 2×11626665620543² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11626665680543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5813332810271 + 5813332810272.

It is an arithmetic number, because the mean of its divisors is an integer number (5813332810272).

Almost surely, 2^{11626665620543} is an apocalyptic number.

11626665620543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11626665620543 is an equidigital number, since it uses as much as digits as its factorization.

11626665620543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 11626665620543 in words is "eleven trillion, six hundred twenty-six billion, six hundred sixty-five million, six hundred twenty thousand, five hundred forty-three".