20722068601448 has 8 divisors (see below), whose sum is σ = 38853878627730. Its totient is φ = 10361034300720.

The previous prime is 20722068601447. The next prime is 20722068601457. The reversal of 20722068601448 is 84410686022702.

It can be written as a sum of positive squares in only one way, i.e., 10611970790404 + 10110097811044 = 3257602^2 + 3179638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20722068601396 and 20722068601405.

It is not an unprimeable number, because it can be changed into a prime (20722068601447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295129287583 + ... + 1295129287598.

Almost surely, 2^{20722068601448} is an apocalyptic number.

It is an amenable number.

20722068601448 is a deficient number, since it is larger than the sum of its proper divisors (18131810026282).

20722068601448 is a wasteful number, since it uses less digits than its factorization.

20722068601448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590258575187 (or 2590258575183 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 20722068601448 in words is "twenty trillion, seven hundred twenty-two billion, sixty-eight million, six hundred one thousand, four hundred forty-eight".