20473536506 has 16 divisors (see below), whose sum is σ = 31243703400. Its totient is φ = 10059290880.

The previous prime is 20473536467. The next prime is 20473536527. The reversal of 20473536506 is 60563537402.

It can be written as a sum of positive squares in 4 ways, for example, as 9897265225 + 10576271281 = 99485^2 + 102841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47990 + ... + 207966.

Almost surely, 2^20473536506 is an apocalyptic number.

20473536506 is a deficient number, since it is larger than the sum of its proper divisors (10770166894).

20473536506 is a wasteful number, since it uses less digits than its factorization.

20473536506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161089.

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 20473536506 in words is "twenty billion, four hundred seventy-three million, five hundred thirty-six thousand, five hundred six".