20332245851 has 2 divisors, whose sum is σ = 20332245852. Its totient is φ = 20332245850.

The previous prime is 20332245839. The next prime is 20332245877. The reversal of 20332245851 is 15854223302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20332245851 - 2¹⁰ = 20332244827 is a prime.

It is not a weakly prime, because it can be changed into another prime (20332245881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166122925 + 10166122926.

It is an arithmetic number, because the mean of its divisors is an integer number (10166122926).

Almost surely, 2^20332245851 is an apocalyptic number.

20332245851 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332245851 is an equidigital number, since it uses as much as digits as its factorization.

20332245851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 20332245851 in words is "twenty billion, three hundred thirty-two million, two hundred forty-five thousand, eight hundred fifty-one".