20958142960198 has 4 divisors (see below), whose sum is σ = 31437214440300. Its totient is φ = 10479071480098.

The previous prime is 20958142960169. The next prime is 20958142960211. The reversal of 20958142960198 is 89106924185902.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5239535740048 + ... + 5239535740051.

It is an arithmetic number, because the mean of its divisors is an integer number (7859303610075).

Almost surely, 2^{20958142960198} is an apocalyptic number.

20958142960198 is a deficient number, since it is larger than the sum of its proper divisors (10479071480102).

20958142960198 is a wasteful number, since it uses less digits than its factorization.

20958142960198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10479071480101.

The product of its (nonzero) digits is 22394880, while the sum is 64.

The spelling of 20958142960198 in words is "twenty trillion, nine hundred fifty-eight billion, one hundred forty-two million, nine hundred sixty thousand, one hundred ninety-eight".