20020001919157 has 2 divisors, whose sum is σ = 20020001919158. Its totient is φ = 20020001919156.

The previous prime is 20020001919107. The next prime is 20020001919233. The reversal of 20020001919157 is 75191910002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20019190466961 + 811452196 = 4474281^2 + 28486^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020001919157 - 2²³ = 20019993530549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020001919107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010000959578 + 10010000959579.

It is an arithmetic number, because the mean of its divisors is an integer number (10010000959579).

Almost surely, 2^{20020001919157} is an apocalyptic number.

It is an amenable number.

20020001919157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020001919157 is an equidigital number, since it uses as much as digits as its factorization.

20020001919157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 37.

The spelling of 20020001919157 in words is "twenty trillion, twenty billion, one million, nine hundred nineteen thousand, one hundred fifty-seven".