20270700614161 has 2 divisors, whose sum is σ = 20270700614162. Its totient is φ = 20270700614160.

The previous prime is 20270700614147. The next prime is 20270700614189. The reversal of 20270700614161 is 16141600707202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14304620801025 + 5966079813136 = 3782145^2 + 2442556^2 .

It is a cyclic number.

It is not a de Polignac number, because 20270700614161 - 2²¹ = 20270698517009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20270700614161.

It is not a weakly prime, because it can be changed into another prime (20270700614191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10135350307080 + 10135350307081.

It is an arithmetic number, because the mean of its divisors is an integer number (10135350307081).

Almost surely, 2^{20270700614161} is an apocalyptic number.

It is an amenable number.

20270700614161 is a deficient number, since it is larger than the sum of its proper divisors (1).

20270700614161 is an equidigital number, since it uses as much as digits as its factorization.

20270700614161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 20270700614161 in words is "twenty trillion, two hundred seventy billion, seven hundred million, six hundred fourteen thousand, one hundred sixty-one".