20038522197 has 64 divisors (see below), whose sum is σ = 29506775040. Its totient is φ = 12051244800.

The previous prime is 20038522193. The next prime is 20038522201. The reversal of 20038522197 is 79122583002.

It is an interprime number because it is at equal distance from previous prime (20038522193) and next prime (20038522201).

It is not a de Polignac number, because 20038522197 - 2² = 20038522193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038522193) 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 63 ways as a sum of consecutive naturals, for example, 24407047 + ... + 24407867.

It is an arithmetic number, because the mean of its divisors is an integer number (461043360).

Almost surely, 2^20038522197 is an apocalyptic number.

It is an amenable number.

20038522197 is a deficient number, since it is larger than the sum of its proper divisors (9468252843).

20038522197 is a wasteful number, since it uses less digits than its factorization.

20038522197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 20038522197 in words is "twenty billion, thirty-eight million, five hundred twenty-two thousand, one hundred ninety-seven".