20413653564146 has 8 divisors (see below), whose sum is σ = 30626506828764. Its totient is φ = 10204817954560.

The previous prime is 20413653564079. The next prime is 20413653564191. The reversal of 20413653564146 is 64146535631402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19852594140625 + 561059423521 = 4455625^2 + 749039^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20413653564094 and 20413653564103.

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, 1004401055 + ... + 1004421378.

Almost surely, 2^{20413653564146} is an apocalyptic number.

20413653564146 is a deficient number, since it is larger than the sum of its proper divisors (10212853264618).

20413653564146 is a wasteful number, since it uses less digits than its factorization.

20413653564146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008827516.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 20413653564146 in words is "twenty trillion, four hundred thirteen billion, six hundred fifty-three million, five hundred sixty-four thousand, one hundred forty-six".