20010001967 has 2 divisors, whose sum is σ = 20010001968. Its totient is φ = 20010001966.

The previous prime is 20010001961. The next prime is 20010002009. The reversal of 20010001967 is 76910001002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20010001967 - 2⁶ = 20010001903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010001961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005000983 + 10005000984.

It is an arithmetic number, because the mean of its divisors is an integer number (10005000984).

Almost surely, 2^20010001967 is an apocalyptic number.

20010001967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010001967 is an equidigital number, since it uses as much as digits as its factorization.

20010001967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 20010001967 its reverse (76910001002), we get a palindrome (96920002969).

The spelling of 20010001967 in words is "twenty billion, ten million, one thousand, nine hundred sixty-seven".