20702760140218 has 8 divisors (see below), whose sum is σ = 33442920226548. Its totient is φ = 9555120064704.

The previous prime is 20702760140203. The next prime is 20702760140273. The reversal of 20702760140218 is 81204106720702.

It can be written as a sum of positive squares in 2 ways, for example, as 19256448439089 + 1446311701129 = 4388217^2 + 1202627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398130002671 + ... + 398130002722.

Almost surely, 2^{20702760140218} is an apocalyptic number.

20702760140218 is a deficient number, since it is larger than the sum of its proper divisors (12740160086330).

20702760140218 is a wasteful number, since it uses less digits than its factorization.

20702760140218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796260005408.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 20702760140218 in words is "twenty trillion, seven hundred two billion, seven hundred sixty million, one hundred forty thousand, two hundred eighteen".