154445550215 has 16 divisors (see below), whose sum is σ = 202247054496. Its totient is φ = 112288598400.

The previous prime is 154445550209. The next prime is 154445550277. The reversal of 154445550215 is 512055544451.

154445550215 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 154445550215 - 2¹⁰ = 154445549191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 266432 + ... + 616341.

It is an arithmetic number, because the mean of its divisors is an integer number (12640440906).

Almost surely, 2^154445550215 is an apocalyptic number.

154445550215 is a deficient number, since it is larger than the sum of its proper divisors (47801504281).

154445550215 is a wasteful number, since it uses less digits than its factorization.

154445550215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885970.

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 154445550215 in words is "one hundred fifty-four billion, four hundred forty-five million, five hundred fifty thousand, two hundred fifteen".