20202018655 has 48 divisors (see below), whose sum is σ = 30450760704. Its totient is φ = 12753054720.

The previous prime is 20202018649. The next prime is 20202018701. The reversal of 20202018655 is 55681020202.

It is not a de Polignac number, because 20202018655 - 2¹¹ = 20202016607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1211575 + ... + 1228135.

It is an arithmetic number, because the mean of its divisors is an integer number (634390848).

Almost surely, 2^20202018655 is an apocalyptic number.

20202018655 is a deficient number, since it is larger than the sum of its proper divisors (10248742049).

20202018655 is a wasteful number, since it uses less digits than its factorization.

20202018655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976 (or 16969 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 20202018655 its reverse (55681020202), we get a palindrome (75883038857).

The spelling of 20202018655 in words is "twenty billion, two hundred two million, eighteen thousand, six hundred fifty-five".