23451366641 has 2 divisors, whose sum is σ = 23451366642. Its totient is φ = 23451366640.

The previous prime is 23451366571. The next prime is 23451366661. The reversal of 23451366641 is 14666315432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22222163041 + 1229203600 = 149071^2 + 35060^2 .

It is a cyclic number.

It is not a de Polignac number, because 23451366641 - 2¹⁴ = 23451350257 is a prime.

It is not a weakly prime, because it can be changed into another prime (23451366661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11725683320 + 11725683321.

It is an arithmetic number, because the mean of its divisors is an integer number (11725683321).

Almost surely, 2^23451366641 is an apocalyptic number.

It is an amenable number.

23451366641 is a deficient number, since it is larger than the sum of its proper divisors (1).

23451366641 is an equidigital number, since it uses as much as digits as its factorization.

23451366641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The spelling of 23451366641 in words is "twenty-three billion, four hundred fifty-one million, three hundred sixty-six thousand, six hundred forty-one".