154221006404 has 12 divisors (see below), whose sum is σ = 281620968384. Its totient is φ = 73757872584.

The previous prime is 154221006403. The next prime is 154221006439. The reversal of 154221006404 is 404600122451.

It is a super-2 number, since 2×154221006404² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154221006403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838157552 + ... + 838157735.

It is an arithmetic number, because the mean of its divisors is an integer number (23468414032).

Almost surely, 2^154221006404 is an apocalyptic number.

It is an amenable number.

154221006404 is a deficient number, since it is larger than the sum of its proper divisors (127399961980).

154221006404 is a wasteful number, since it uses less digits than its factorization.

154221006404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676315314 (or 1676315312 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 154221006404 its reverse (404600122451), we get a palindrome (558821128855).

The spelling of 154221006404 in words is "one hundred fifty-four billion, two hundred twenty-one million, six thousand, four hundred four".