20148210199 has 4 divisors (see below), whose sum is σ = 21698072536. Its totient is φ = 18598347864.

The previous prime is 20148210157. The next prime is 20148210209. The reversal of 20148210199 is 99101284102.

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

It is a cyclic number.

It is not a de Polignac number, because 20148210199 - 2⁹ = 20148209687 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 (20148210139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774931149 + ... + 774931174.

It is an arithmetic number, because the mean of its divisors is an integer number (5424518134).

Almost surely, 2^20148210199 is an apocalyptic number.

20148210199 is a deficient number, since it is larger than the sum of its proper divisors (1549862337).

20148210199 is a wasteful number, since it uses less digits than its factorization.

20148210199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549862336.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 20148210199 in words is "twenty billion, one hundred forty-eight million, two hundred ten thousand, one hundred ninety-nine".