20040154336 has 24 divisors (see below), whose sum is σ = 41774881680. Its totient is φ = 9430660608.

The previous prime is 20040154331. The next prime is 20040154397. The reversal of 20040154336 is 63345104002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040154331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18418716 + ... + 18419803.

It is an arithmetic number, because the mean of its divisors is an integer number (1740620070).

Almost surely, 2^20040154336 is an apocalyptic number.

It is an amenable number.

20040154336 is an abundant number, since it is smaller than the sum of its proper divisors (21734727344).

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

20040154336 is a wasteful number, since it uses less digits than its factorization.

20040154336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36838546 (or 36838538 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20040154336 its reverse (63345104002), we get a palindrome (83385258338).

The spelling of 20040154336 in words is "twenty billion, forty million, one hundred fifty-four thousand, three hundred thirty-six".