20413660136642 has 24 divisors (see below), whose sum is σ = 31047998527476. Its totient is φ = 10066263532416.

The previous prime is 20413660136627. The next prime is 20413660136651. The reversal of 20413660136642 is 24663106631402.

It can be written as a sum of positive squares in 6 ways, for example, as 2589972016921 + 17823688119721 = 1609339^2 + 4221811^2 .

It is a super-2 number, since 2×20413660136642² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20413660136593 and 20413660136602.

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 11 ways as a sum of consecutive naturals, for example, 160627148 + ... + 160754184.

Almost surely, 2^{20413660136642} is an apocalyptic number.

20413660136642 is a deficient number, since it is larger than the sum of its proper divisors (10634338390834).

20413660136642 is a wasteful number, since it uses less digits than its factorization.

20413660136642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142262 (or 142189 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 20413660136642 in words is "twenty trillion, four hundred thirteen billion, six hundred sixty million, one hundred thirty-six thousand, six hundred forty-two".