20722068601447 has 2 divisors, whose sum is σ = 20722068601448. Its totient is φ = 20722068601446.

The previous prime is 20722068601363. The next prime is 20722068601457. The reversal of 20722068601447 is 74410686022702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20722068601447 - 2³⁵ = 20687708863079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20722068601447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20722068601457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10361034300723 + 10361034300724.

It is an arithmetic number, because the mean of its divisors is an integer number (10361034300724).

Almost surely, 2^{20722068601447} is an apocalyptic number.

20722068601447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20722068601447 is an equidigital number, since it uses as much as digits as its factorization.

20722068601447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 20722068601447 in words is "twenty trillion, seven hundred twenty-two billion, sixty-eight million, six hundred one thousand, four hundred forty-seven".