20355203352 has 32 divisors (see below), whose sum is σ = 55514191680. Its totient is φ = 6168243360.

The previous prime is 20355203333. The next prime is 20355203357. The reversal of 20355203352 is 25330255302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20355203357) 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, 38551258 + ... + 38551785.

It is an arithmetic number, because the mean of its divisors is an integer number (1734818490).

Almost surely, 2^20355203352 is an apocalyptic number.

20355203352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20355203352 is an abundant number, since it is smaller than the sum of its proper divisors (35158988328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20355203352 is a wasteful number, since it uses less digits than its factorization.

20355203352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77103063 (or 77103059 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 30.

Adding to 20355203352 its reverse (25330255302), we get a palindrome (45685458654).

The spelling of 20355203352 in words is "twenty billion, three hundred fifty-five million, two hundred three thousand, three hundred fifty-two".