20110858057 has 2 divisors, whose sum is σ = 20110858058. Its totient is φ = 20110858056.

The previous prime is 20110858049. The next prime is 20110858069. The reversal of 20110858057 is 75085801102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10828691721 + 9282166336 = 104061^2 + 96344^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110858057 - 2³ = 20110858049 is a prime.

It is a super-3 number, since 3×20110858057³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20110858007) 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, 10055429028 + 10055429029.

It is an arithmetic number, because the mean of its divisors is an integer number (10055429029).

Almost surely, 2^20110858057 is an apocalyptic number.

It is an amenable number.

20110858057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110858057 is an equidigital number, since it uses as much as digits as its factorization.

20110858057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 37.

The spelling of 20110858057 in words is "twenty billion, one hundred ten million, eight hundred fifty-eight thousand, fifty-seven".