154452215505 has 32 divisors (see below), whose sum is σ = 282579026688. Its totient is φ = 70568697600.

The previous prime is 154452215501. The next prime is 154452215551. The reversal of 154452215505 is 505512254451.

It is a happy number.

154452215505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154452215505 - 2² = 154452215501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154452215501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199806 + ... + 590615.

It is an arithmetic number, because the mean of its divisors is an integer number (8830594584).

Almost surely, 2^154452215505 is an apocalyptic number.

154452215505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154452215505 is a deficient number, since it is larger than the sum of its proper divisors (128126811183).

154452215505 is a wasteful number, since it uses less digits than its factorization.

154452215505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792297.

The product of its (nonzero) digits is 200000, while the sum is 39.

Adding to 154452215505 its reverse (505512254451), we get a palindrome (659964469956).

The spelling of 154452215505 in words is "one hundred fifty-four billion, four hundred fifty-two million, two hundred fifteen thousand, five hundred five".