154109558109 has 32 divisors (see below), whose sum is σ = 223776008064. Its totient is φ = 93771820800.

The previous prime is 154109558089. The next prime is 154109558129. The reversal of 154109558109 is 901855901451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (154109558089) and next prime (154109558129).

It is not a de Polignac number, because 154109558109 - 2¹⁷ = 154109427037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154109558129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2955982 + ... + 3007664.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000252).

Almost surely, 2^154109558109 is an apocalyptic number.

It is an amenable number.

154109558109 is a deficient number, since it is larger than the sum of its proper divisors (69666449955).

154109558109 is a wasteful number, since it uses less digits than its factorization.

154109558109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52557.

The product of its (nonzero) digits is 324000, while the sum is 48.

The spelling of 154109558109 in words is "one hundred fifty-four billion, one hundred nine million, five hundred fifty-eight thousand, one hundred nine".