20350368667 has 2 divisors, whose sum is σ = 20350368668. Its totient is φ = 20350368666.

The previous prime is 20350368601. The next prime is 20350368691. The reversal of 20350368667 is 76686305302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20350368667 is a prime.

It is not a weakly prime, because it can be changed into another prime (20350368967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175184333 + 10175184334.

It is an arithmetic number, because the mean of its divisors is an integer number (10175184334).

Almost surely, 2^20350368667 is an apocalyptic number.

20350368667 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350368667 is an equidigital number, since it uses as much as digits as its factorization.

20350368667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

It can be divided in two parts, 20350 and 368667, that added together give a cube (389017 = 73³).

The spelling of 20350368667 in words is "twenty billion, three hundred fifty million, three hundred sixty-eight thousand, six hundred sixty-seven".