20955652624 has 10 divisors (see below), whose sum is σ = 40601576990. Its totient is φ = 10477826304.

The previous prime is 20955652621. The next prime is 20955652643. The reversal of 20955652624 is 42625655902.

It can be written as a sum of positive squares in only one way, i.e., 18071962624 + 2883690000 = 134432^2 + 53700^2 .

It is not an unprimeable number, because it can be changed into a prime (20955652621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654864129 + ... + 654864160.

It is an arithmetic number, because the mean of its divisors is an integer number (4060157699).

Almost surely, 2^20955652624 is an apocalyptic number.

It is an amenable number.

20955652624 is a deficient number, since it is larger than the sum of its proper divisors (19645924366).

20955652624 is a wasteful number, since it uses less digits than its factorization.

20955652624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309728297 (or 1309728291 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 20955652624 in words is "twenty billion, nine hundred fifty-five million, six hundred fifty-two thousand, six hundred twenty-four".