20722068601456 has 10 divisors (see below), whose sum is σ = 40149007915352. Its totient is φ = 10361034300720.

The previous prime is 20722068601447. The next prime is 20722068601457. The reversal of 20722068601456 is 65410686022702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20722068601457) 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, 647564643780 + ... + 647564643811.

Almost surely, 2^{20722068601456} is an apocalyptic number.

It is an amenable number.

20722068601456 is a deficient number, since it is larger than the sum of its proper divisors (19426939313896).

20722068601456 is a wasteful number, since it uses less digits than its factorization.

20722068601456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295129287599 (or 1295129287593 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 20722068601456 in words is "twenty trillion, seven hundred twenty-two billion, sixty-eight million, six hundred one thousand, four hundred fifty-six".