199975030020 has 576 divisors, whose sum is σ = 702885980160. Its totient is φ = 45685555200.

The previous prime is 199975030007. The next prime is 199975030033. The reversal of 199975030020 is 20030579991.

It is a happy number.

199975030020 is a `hidden beast` number, since 199 + 97 + 50 + 300 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (199975030007) and next prime (199975030033).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 326223234 + ... + 326223846.

It is an arithmetic number, because the mean of its divisors is an integer number (1220288160).

Almost surely, 2^199975030020 is an apocalyptic number.

199975030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199975030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351442990080).

199975030020 is an abundant number, since it is smaller than the sum of its proper divisors (502910950140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199975030020 is a wasteful number, since it uses less digits than its factorization.

199975030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The spelling of 199975030020 in words is "one hundred ninety-nine billion, nine hundred seventy-five million, thirty thousand, twenty".