20034555111157 has 2 divisors, whose sum is σ = 20034555111158. Its totient is φ = 20034555111156.

The previous prime is 20034555111149. The next prime is 20034555111271. The reversal of 20034555111157 is 75111155543002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19930813787236 + 103741323921 = 4464394^2 + 322089^2 .

It is a cyclic number.

It is not a de Polignac number, because 20034555111157 - 2³ = 20034555111149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20034585111157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017277555578 + 10017277555579.

It is an arithmetic number, because the mean of its divisors is an integer number (10017277555579).

Almost surely, 2^{20034555111157} is an apocalyptic number.

It is an amenable number.

20034555111157 is a deficient number, since it is larger than the sum of its proper divisors (1).

20034555111157 is an equidigital number, since it uses as much as digits as its factorization.

20034555111157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 40.

The spelling of 20034555111157 in words is "twenty trillion, thirty-four billion, five hundred fifty-five million, one hundred eleven thousand, one hundred fifty-seven".