13220434340553 has 32 divisors (see below), whose sum is σ = 19300966659072. Its totient is φ = 7982709134400.

The previous prime is 13220434340543. The next prime is 13220434340567. The reversal of 13220434340553 is 35504343402231.

It is not a de Polignac number, because 13220434340553 - 2⁴ = 13220434340537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13220434340543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55981543 + ... + 56217203.

It is an arithmetic number, because the mean of its divisors is an integer number (603155208096).

Almost surely, 2^{13220434340553} is an apocalyptic number.

It is an amenable number.

13220434340553 is a deficient number, since it is larger than the sum of its proper divisors (6080532318519).

13220434340553 is a wasteful number, since it uses less digits than its factorization.

13220434340553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241965.

The product of its (nonzero) digits is 518400, while the sum is 39.

Adding to 13220434340553 its reverse (35504343402231), we get a palindrome (48724777742784).

The spelling of 13220434340553 in words is "thirteen trillion, two hundred twenty billion, four hundred thirty-four million, three hundred forty thousand, five hundred fifty-three".