20502542202 has 8 divisors (see below), whose sum is σ = 41005084416. Its totient is φ = 6834180732.

The previous prime is 20502542183. The next prime is 20502542209. The reversal of 20502542202 is 20224520502.

It is a happy number.

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

20502542202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20502542209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708545178 + ... + 1708545189.

It is an arithmetic number, because the mean of its divisors is an integer number (5125635552).

Almost surely, 2^20502542202 is an apocalyptic number.

20502542202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20502542202 is a wasteful number, since it uses less digits than its factorization.

20502542202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417090372.

The product of its (nonzero) digits is 3200, while the sum is 24.

The spelling of 20502542202 in words is "twenty billion, five hundred two million, five hundred forty-two thousand, two hundred two".