11621343225543 has 24 divisors (see below), whose sum is σ = 15924703214448. Its totient is φ = 7537728864768.

The previous prime is 11621343225533. The next prime is 11621343225559. The reversal of 11621343225543 is 34552234312611.

It is not a de Polignac number, because 11621343225543 - 2⁵ = 11621343225511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11621343225495 and 11621343225504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621343225533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4723296 + ... + 6749237.

It is an arithmetic number, because the mean of its divisors is an integer number (663529300602).

Almost surely, 2^{11621343225543} is an apocalyptic number.

11621343225543 is a deficient number, since it is larger than the sum of its proper divisors (4303359988905).

11621343225543 is an equidigital number, since it uses as much as digits as its factorization.

11621343225543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11472751 (or 11472692 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The spelling of 11621343225543 in words is "eleven trillion, six hundred twenty-one billion, three hundred forty-three million, two hundred twenty-five thousand, five hundred forty-three".