11621556000623 has 2 divisors, whose sum is σ = 11621556000624. Its totient is φ = 11621556000622.

The previous prime is 11621556000619. The next prime is 11621556000709. The reversal of 11621556000623 is 32600065512611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11621556000623 - 2² = 11621556000619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11621556000323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810778000311 + 5810778000312.

It is an arithmetic number, because the mean of its divisors is an integer number (5810778000312).

Almost surely, 2^{11621556000623} is an apocalyptic number.

11621556000623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11621556000623 is an equidigital number, since it uses as much as digits as its factorization.

11621556000623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 11621556000623 in words is "eleven trillion, six hundred twenty-one billion, five hundred fifty-six million, six hundred twenty-three", and thus it is an aban number.