20552122330 has 16 divisors (see below), whose sum is σ = 37276218144. Its totient is φ = 8158093840.

The previous prime is 20552122321. The next prime is 20552122333. The reversal of 20552122330 is 3322125502.

It is a junction number, because it is equal to n+sod(n) for n = 20552122295 and 20552122304.

It is not an unprimeable number, because it can be changed into a prime (20552122333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7843012 + ... + 7845631.

It is an arithmetic number, because the mean of its divisors is an integer number (2329763634).

Almost surely, 2^20552122330 is an apocalyptic number.

20552122330 is a deficient number, since it is larger than the sum of its proper divisors (16724095814).

20552122330 is a wasteful number, since it uses less digits than its factorization.

20552122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15688781.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20552122330 its reverse (3322125502), we get a palindrome (23874247832).

The spelling of 20552122330 in words is "twenty billion, five hundred fifty-two million, one hundred twenty-two thousand, three hundred thirty".