20189066343958 has 16 divisors (see below), whose sum is σ = 30710366866080. Its totient is φ = 9952279590400.

The previous prime is 20189066343947. The next prime is 20189066344003. The reversal of 20189066343958 is 85934366098102.

It is a self number, because there is not a number n which added to its sum of digits gives 20189066343958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20744928 + ... + 21696316.

It is an arithmetic number, because the mean of its divisors is an integer number (1919397929130).

Almost surely, 2^{20189066343958} is an apocalyptic number.

20189066343958 is a deficient number, since it is larger than the sum of its proper divisors (10521300522122).

20189066343958 is a wasteful number, since it uses less digits than its factorization.

20189066343958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100903.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 20189066343958 in words is "twenty trillion, one hundred eighty-nine billion, sixty-six million, three hundred forty-three thousand, nine hundred fifty-eight".