154451411440 has 40 divisors (see below), whose sum is σ = 359659868688. Its totient is φ = 61684162560.

The previous prime is 154451411399. The next prime is 154451411453. The reversal of 154451411440 is 44114154451.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 154451411396 and 154451411405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1454682 + ... + 1557241.

Almost surely, 2^154451411440 is an apocalyptic number.

154451411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154451411440 is an abundant number, since it is smaller than the sum of its proper divisors (205208457248).

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

154451411440 is a wasteful number, since it uses less digits than its factorization.

154451411440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012577 (or 3012571 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

Adding to 154451411440 its reverse (44114154451), we get a palindrome (198565565891).

The spelling of 154451411440 in words is "one hundred fifty-four billion, four hundred fifty-one million, four hundred eleven thousand, four hundred forty".