20702743238198 has 16 divisors (see below), whose sum is σ = 37033478588160. Its totient is φ = 8486838842856.

The previous prime is 20702743238197. The next prime is 20702743238227. The reversal of 20702743238198 is 89183234720702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702743238197) 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, 32147116508 + ... + 32147117151.

It is an arithmetic number, because the mean of its divisors is an integer number (2314592411760).

Almost surely, 2^{20702743238198} is an apocalyptic number.

20702743238198 is a deficient number, since it is larger than the sum of its proper divisors (16330735349962).

20702743238198 is a wasteful number, since it uses less digits than its factorization.

20702743238198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64294233691.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 20702743238198 in words is "twenty trillion, seven hundred two billion, seven hundred forty-three million, two hundred thirty-eight thousand, one hundred ninety-eight".