20000218471407 has 12 divisors (see below), whose sum is σ = 28889248682944. Its totient is φ = 13333458569760.

The previous prime is 20000218471369. The next prime is 20000218471411. The reversal of 20000218471407 is 70417481200002.

20000218471407 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 0 + 2 + 184 + 71 + 407 = 666.

It is not a de Polignac number, because 20000218471407 - 2²⁰ = 20000217422831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000218471487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6676482 + ... + 9196512.

Almost surely, 2^{20000218471407} is an apocalyptic number.

20000218471407 is a deficient number, since it is larger than the sum of its proper divisors (8889030211537).

20000218471407 is a wasteful number, since it uses less digits than its factorization.

20000218471407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401870 (or 3401867 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

Adding to 20000218471407 its reverse (70417481200002), we get a palindrome (90417699671409).

The spelling of 20000218471407 in words is "twenty trillion, two hundred eighteen million, four hundred seventy-one thousand, four hundred seven".