20536131543370 has 8 divisors (see below), whose sum is σ = 36965036778084. Its totient is φ = 8214452617344.

The previous prime is 20536131543307. The next prime is 20536131543397. The reversal of 20536131543370 is 7334513163502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19849243652001 + 686887891369 = 4455249^2 + 828787^2 .

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

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, 1026806577159 + ... + 1026806577178.

Almost surely, 2^{20536131543370} is an apocalyptic number.

20536131543370 is a deficient number, since it is larger than the sum of its proper divisors (16428905234714).

20536131543370 is a wasteful number, since it uses less digits than its factorization.

20536131543370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053613154344.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 20536131543370 in words is "twenty trillion, five hundred thirty-six billion, one hundred thirty-one million, five hundred forty-three thousand, three hundred seventy".