20144348183851 has 2 divisors, whose sum is σ = 20144348183852. Its totient is φ = 20144348183850.

The previous prime is 20144348183761. The next prime is 20144348183857. The reversal of 20144348183851 is 15838184344102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20144348183851 - 2⁷ = 20144348183723 is a prime.

It is not a weakly prime, because it can be changed into another prime (20144348183857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072174091925 + 10072174091926.

It is an arithmetic number, because the mean of its divisors is an integer number (10072174091926).

Almost surely, 2^{20144348183851} is an apocalyptic number.

20144348183851 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144348183851 is an equidigital number, since it uses as much as digits as its factorization.

20144348183851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2949120, while the sum is 52.

The spelling of 20144348183851 in words is "twenty trillion, one hundred forty-four billion, three hundred forty-eight million, one hundred eighty-three thousand, eight hundred fifty-one".