202140504520 has 16 divisors (see below), whose sum is σ = 454816135260. Its totient is φ = 80856201792.

The previous prime is 202140504497. The next prime is 202140504551. The reversal of 202140504520 is 25405041202.

It can be written as a sum of positive squares in 2 ways, for example, as 201146868036 + 993636484 = 448494^2 + 31522^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526756267 + ... + 2526756346.

Almost surely, 2^202140504520 is an apocalyptic number.

202140504520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202140504520 is an abundant number, since it is smaller than the sum of its proper divisors (252675630740).

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

202140504520 is a wasteful number, since it uses less digits than its factorization.

202140504520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053512624 (or 5053512620 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 202140504520 its reverse (25405041202), we get a palindrome (227545545722).

The spelling of 202140504520 in words is "two hundred two billion, one hundred forty million, five hundred four thousand, five hundred twenty".