20042324154 has 128 divisors (see below), whose sum is σ = 50609664000. Its totient is φ = 5845017024.

The previous prime is 20042324149. The next prime is 20042324161. The reversal of 20042324154 is 45142324002.

20042324154 is a `hidden beast` number, since 200 + 42 + 3 + 2 + 415 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 669699 + ... + 698985.

It is an arithmetic number, because the mean of its divisors is an integer number (395388000).

Almost surely, 2^20042324154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20042324154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25304832000).

20042324154 is an abundant number, since it is smaller than the sum of its proper divisors (30567339846).

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

20042324154 is a wasteful number, since it uses less digits than its factorization.

20042324154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29369 (or 29363 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 20042324154 its reverse (45142324002), we get a palindrome (65184648156).

The spelling of 20042324154 in words is "twenty billion, forty-two million, three hundred twenty-four thousand, one hundred fifty-four".