20040535244154 has 64 divisors (see below), whose sum is σ = 43052362721280. Its totient is φ = 6196929684480.

The previous prime is 20040535244117. The next prime is 20040535244243. The reversal of 20040535244154 is 45144253504002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2595129 + ... + 6842204.

It is an arithmetic number, because the mean of its divisors is an integer number (672693167520).

Almost surely, 2^{20040535244154} is an apocalyptic number.

20040535244154 is an abundant number, since it is smaller than the sum of its proper divisors (23011827477126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20040535244154 is a wasteful number, since it uses less digits than its factorization.

20040535244154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437655.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 20040535244154 its reverse (45144253504002), we get a palindrome (65184788748156).

The spelling of 20040535244154 in words is "twenty trillion, forty billion, five hundred thirty-five million, two hundred forty-four thousand, one hundred fifty-four".