13562402020 has 12 divisors (see below), whose sum is σ = 28481044284. Its totient is φ = 5424960800.

The previous prime is 13562401991. The next prime is 13562402033. The reversal of 13562402020 is 2020426531.

It can be written as a sum of positive squares in 2 ways, for example, as 9785562084 + 3776839936 = 98922^2 + 61456^2 .

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, 339060031 + ... + 339060070.

It is an arithmetic number, because the mean of its divisors is an integer number (2373420357).

Almost surely, 2^13562402020 is an apocalyptic number.

13562402020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13562402020 is an abundant number, since it is smaller than the sum of its proper divisors (14918642264).

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

13562402020 is a wasteful number, since it uses less digits than its factorization.

13562402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678120110 (or 678120108 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 13562402020 its reverse (2020426531), we get a palindrome (15582828551).

The spelling of 13562402020 in words is "thirteen billion, five hundred sixty-two million, four hundred two thousand, twenty".