20324323655 has 8 divisors (see below), whose sum is σ = 25672830000. Its totient is φ = 15403697856.

The previous prime is 20324323597. The next prime is 20324323673. The reversal of 20324323655 is 55632342302.

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

It is a cyclic number.

It is not a de Polignac number, because 20324323655 - 2¹² = 20324319559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106970030 + ... + 106970219.

It is an arithmetic number, because the mean of its divisors is an integer number (3209103750).

Almost surely, 2^20324323655 is an apocalyptic number.

20324323655 is a deficient number, since it is larger than the sum of its proper divisors (5348506345).

20324323655 is a wasteful number, since it uses less digits than its factorization.

20324323655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213940273.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 20324323655 its reverse (55632342302), we get a palindrome (75956665957).

The spelling of 20324323655 in words is "twenty billion, three hundred twenty-four million, three hundred twenty-three thousand, six hundred fifty-five".