20722823353555 has 16 divisors (see below), whose sum is σ = 26177352717600. Its totient is φ = 15705025873920.

The previous prime is 20722823353549. The next prime is 20722823353577. The reversal of 20722823353555 is 55535332822702.

It is not a de Polignac number, because 20722823353555 - 2⁵ = 20722823353523 is a prime.

It is a super-2 number, since 2×20722823353555² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2641800 + ... + 6958789.

It is an arithmetic number, because the mean of its divisors is an integer number (1636084544850).

Almost surely, 2^{20722823353555} is an apocalyptic number.

20722823353555 is a deficient number, since it is larger than the sum of its proper divisors (5454529364045).

20722823353555 is a wasteful number, since it uses less digits than its factorization.

20722823353555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623334.

The product of its (nonzero) digits is 15120000, while the sum is 52.

The spelling of 20722823353555 in words is "twenty trillion, seven hundred twenty-two billion, eight hundred twenty-three million, three hundred fifty-three thousand, five hundred fifty-five".