202104555540 has 24 divisors (see below), whose sum is σ = 565892755680. Its totient is φ = 53894548128.

The previous prime is 202104555533. The next prime is 202104555557. The reversal of 202104555540 is 45555401202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684204570 + ... + 1684204689.

It is an arithmetic number, because the mean of its divisors is an integer number (23578864820).

Almost surely, 2^202104555540 is an apocalyptic number.

202104555540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202104555540 is an abundant number, since it is smaller than the sum of its proper divisors (363788200140).

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

202104555540 is a wasteful number, since it uses less digits than its factorization.

202104555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368409271 (or 3368409269 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 202104555540 its reverse (45555401202), we get a palindrome (247659956742).

The spelling of 202104555540 in words is "two hundred two billion, one hundred four million, five hundred fifty-five thousand, five hundred forty".