198020000023 has 8 divisors (see below), whose sum is σ = 199074787200. Its totient is φ = 196965810360.

The previous prime is 198019999987. The next prime is 198020000081. The reversal of 198020000023 is 320000020891.

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

It is a cyclic number.

It is not a de Polignac number, because 198020000023 - 2¹³ = 198019991831 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 (198020000323) 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, 523236 + ... + 818422.

It is an arithmetic number, because the mean of its divisors is an integer number (24884348400).

Almost surely, 2^198020000023 is an apocalyptic number.

198020000023 is a deficient number, since it is larger than the sum of its proper divisors (1054787177).

198020000023 is a wasteful number, since it uses less digits than its factorization.

198020000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298757.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 198020000023 in words is "one hundred ninety-eight billion, twenty million, twenty-three", and thus it is an aban number.