20331343455 has 8 divisors (see below), whose sum is σ = 32530149552. Its totient is φ = 10843383168.

The previous prime is 20331343441. The next prime is 20331343457. The reversal of 20331343455 is 55434313302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20331343455 - 2⁵ = 20331343423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331343457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677711434 + ... + 677711463.

It is an arithmetic number, because the mean of its divisors is an integer number (4066268694).

Almost surely, 2^20331343455 is an apocalyptic number.

20331343455 is a deficient number, since it is larger than the sum of its proper divisors (12198806097).

20331343455 is a wasteful number, since it uses less digits than its factorization.

20331343455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355422905.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 20331343455 its reverse (55434313302), we get a palindrome (75765656757).

The spelling of 20331343455 in words is "twenty billion, three hundred thirty-one million, three hundred forty-three thousand, four hundred fifty-five".