20018182007 has 2 divisors, whose sum is σ = 20018182008. Its totient is φ = 20018182006.

The previous prime is 20018182003. The next prime is 20018182027. The reversal of 20018182007 is 70028181002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20018182007 - 2² = 20018182003 is a prime.

It is a super-2 number, since 2×20018182007² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20018182003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10009091003 + 10009091004.

It is an arithmetic number, because the mean of its divisors is an integer number (10009091004).

Almost surely, 2^20018182007 is an apocalyptic number.

20018182007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20018182007 is an equidigital number, since it uses as much as digits as its factorization.

20018182007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

The spelling of 20018182007 in words is "twenty billion, eighteen million, one hundred eighty-two thousand, seven".