100000020000018 has 16 divisors (see below), whose sum is σ = 200007197764416. Its totient is φ = 33332147039280.

The previous prime is 100000019999977. The next prime is 100000020000019. The reversal of 100000020000018 is 810000020000001.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100000019999958 and 100000020000012.

It is not an unprimeable number, because it can be changed into a prime (100000020000019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298058553 + ... + 298393868.

It is an arithmetic number, because the mean of its divisors is an integer number (12500449860276).

Almost surely, 2^{100000020000018} is an apocalyptic number.

100000020000018 is an abundant number, since it is smaller than the sum of its proper divisors (100007177764398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100000020000018 is a wasteful number, since it uses less digits than its factorization.

100000020000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596480369.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100000020000018 its reverse (810000020000001), we get a palindrome (910000040000019).

The spelling of 100000020000018 in words is "one hundred trillion, twenty million, eighteen", and thus it is an aban number.