20198257083 has 24 divisors (see below), whose sum is σ = 29461902288. Its totient is φ = 13333799232.

The previous prime is 20198257061. The next prime is 20198257091. The reversal of 20198257083 is 38075289102.

It is a happy number.

It is not a de Polignac number, because 20198257083 - 2⁶ = 20198257019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20198257033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389616 + ... + 438402.

It is an arithmetic number, because the mean of its divisors is an integer number (1227579262).

Almost surely, 2^20198257083 is an apocalyptic number.

20198257083 is a deficient number, since it is larger than the sum of its proper divisors (9263645205).

20198257083 is a wasteful number, since it uses less digits than its factorization.

20198257083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49243 (or 49240 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 20198257083 in words is "twenty billion, one hundred ninety-eight million, two hundred fifty-seven thousand, eighty-three".