23150155445491 has 2 divisors, whose sum is σ = 23150155445492. Its totient is φ = 23150155445490.

The previous prime is 23150155445441. The next prime is 23150155445519. The reversal of 23150155445491 is 19454455105132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23150155445491 - 2⁷ = 23150155445363 is a prime.

It is not a weakly prime, because it can be changed into another prime (23150155445441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11575077722745 + 11575077722746.

It is an arithmetic number, because the mean of its divisors is an integer number (11575077722746).

Almost surely, 2^{23150155445491} is an apocalyptic number.

23150155445491 is a deficient number, since it is larger than the sum of its proper divisors (1).

23150155445491 is an equidigital number, since it uses as much as digits as its factorization.

23150155445491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 23150155445491 in words is "twenty-three trillion, one hundred fifty billion, one hundred fifty-five million, four hundred forty-five thousand, four hundred ninety-one".