20722068601455 has 16 divisors (see below), whose sum is σ = 35705718205920. Its totient is φ = 10201633772928.

The previous prime is 20722068601447. The next prime is 20722068601457. The reversal of 20722068601455 is 55410686022702.

It is not a de Polignac number, because 20722068601455 - 2³ = 20722068601447 is a prime.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53133509040 + ... + 53133509429.

It is an arithmetic number, because the mean of its divisors is an integer number (2231607387870).

Almost surely, 2^{20722068601455} is an apocalyptic number.

20722068601455 is a deficient number, since it is larger than the sum of its proper divisors (14983649604465).

20722068601455 is a wasteful number, since it uses less digits than its factorization.

20722068601455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106267018490.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 20722068601455 in words is "twenty trillion, seven hundred twenty-two billion, sixty-eight million, six hundred one thousand, four hundred fifty-five".