20242400053642 has 16 divisors (see below), whose sum is σ = 32701298748552. Its totient is φ = 9342064143360.

The previous prime is 20242400053619. The next prime is 20242400053643. The reversal of 20242400053642 is 24635000424202.

It can be written as a sum of positive squares in 4 ways, for example, as 7310745337921 + 12931654715721 = 2703839^2 + 3596061^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20242400053598 and 20242400053607.

It is not an unprimeable number, because it can be changed into a prime (20242400053643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23825959 + ... + 24660922.

Almost surely, 2^{20242400053642} is an apocalyptic number.

20242400053642 is a deficient number, since it is larger than the sum of its proper divisors (12458898694910).

20242400053642 is a wasteful number, since it uses less digits than its factorization.

20242400053642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48502953.

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 20242400053642 its reverse (24635000424202), we get a palindrome (44877400477844).

The spelling of 20242400053642 in words is "twenty trillion, two hundred forty-two billion, four hundred million, fifty-three thousand, six hundred forty-two".