20004243154 has 16 divisors (see below), whose sum is σ = 34426430208. Its totient is φ = 8539886592.

The previous prime is 20004243137. The next prime is 20004243163. The reversal of 20004243154 is 45134240002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2776314 + ... + 2783509.

It is an arithmetic number, because the mean of its divisors is an integer number (2151651888).

Almost surely, 2^20004243154 is an apocalyptic number.

20004243154 is a deficient number, since it is larger than the sum of its proper divisors (14422187054).

20004243154 is a wasteful number, since it uses less digits than its factorization.

20004243154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560089.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20004243154 its reverse (45134240002), we get a palindrome (65138483156).

The spelling of 20004243154 in words is "twenty billion, four million, two hundred forty-three thousand, one hundred fifty-four".