20146111117361 has 2 divisors, whose sum is σ = 20146111117362. Its totient is φ = 20146111117360.

The previous prime is 20146111117261. The next prime is 20146111117367. The reversal of 20146111117361 is 16371111164102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11291582487025 + 8854528630336 = 3360295^2 + 2975656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20146111117361 is a prime.

It is not a weakly prime, because it can be changed into another prime (20146111117367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073055558680 + 10073055558681.

It is an arithmetic number, because the mean of its divisors is an integer number (10073055558681).

Almost surely, 2^{20146111117361} is an apocalyptic number.

It is an amenable number.

20146111117361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146111117361 is an equidigital number, since it uses as much as digits as its factorization.

20146111117361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 20146111117361 in words is "twenty trillion, one hundred forty-six billion, one hundred eleven million, one hundred seventeen thousand, three hundred sixty-one".