20198018307 has 16 divisors (see below), whose sum is σ = 28106956800. Its totient is φ = 12877436352.

The previous prime is 20198018303. The next prime is 20198018333. The reversal of 20198018307 is 70381089102.

It is not a de Polignac number, because 20198018307 - 2² = 20198018303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20198018303) 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 15 ways as a sum of consecutive naturals, for example, 378558 + ... + 428604.

It is an arithmetic number, because the mean of its divisors is an integer number (1756684800).

Almost surely, 2^20198018307 is an apocalyptic number.

20198018307 is a deficient number, since it is larger than the sum of its proper divisors (7908938493).

20198018307 is a wasteful number, since it uses less digits than its factorization.

20198018307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55922.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 20198018307 in words is "twenty billion, one hundred ninety-eight million, eighteen thousand, three hundred seven".