20363345220 has 48 divisors (see below), whose sum is σ = 57023608320. Its totient is φ = 5429630976.

The previous prime is 20363345213. The next prime is 20363345221. The reversal of 20363345220 is 2254336302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20363345221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961101 + ... + 982059.

It is an arithmetic number, because the mean of its divisors is an integer number (1187991840).

Almost surely, 2^20363345220 is an apocalyptic number.

20363345220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20363345220 is an abundant number, since it is smaller than the sum of its proper divisors (36660263100).

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

20363345220 is a wasteful number, since it uses less digits than its factorization.

20363345220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37164 (or 37162 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

The spelling of 20363345220 in words is "twenty billion, three hundred sixty-three million, three hundred forty-five thousand, two hundred twenty".