20010010105957 has 2 divisors, whose sum is σ = 20010010105958. Its totient is φ = 20010010105956.

The previous prime is 20010010105931. The next prime is 20010010106029. The reversal of 20010010105957 is 75950101001002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16757159789601 + 3252850316356 = 4093551^2 + 1803566^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010010105957 - 2⁷ = 20010010105829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010010115957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005005052978 + 10005005052979.

It is an arithmetic number, because the mean of its divisors is an integer number (10005005052979).

Almost surely, 2^{20010010105957} is an apocalyptic number.

It is an amenable number.

20010010105957 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010010105957 is an equidigital number, since it uses as much as digits as its factorization.

20010010105957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 31.

Adding to 20010010105957 its reverse (75950101001002), we get a palindrome (95960111106959).

The spelling of 20010010105957 in words is "twenty trillion, ten billion, ten million, one hundred five thousand, nine hundred fifty-seven".