154242502155 has 64 divisors (see below), whose sum is σ = 320049377280. Its totient is φ = 69010607232.

The previous prime is 154242502153. The next prime is 154242502177. The reversal of 154242502155 is 551205242451.

154242502155 is a `hidden beast` number, since 1 + 542 + 42 + 5 + 0 + 21 + 55 = 666.

154242502155 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 154242502155 - 2¹ = 154242502153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154242502153) 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 63 ways as a sum of consecutive naturals, for example, 1691964 + ... + 1780793.

It is an arithmetic number, because the mean of its divisors is an integer number (5000771520).

Almost surely, 2^154242502155 is an apocalyptic number.

154242502155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

154242502155 is an abundant number, since it is smaller than the sum of its proper divisors (165806875125).

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

154242502155 is a wasteful number, since it uses less digits than its factorization.

154242502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472825 (or 3472819 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 154242502155 in words is "one hundred fifty-four billion, two hundred forty-two million, five hundred two thousand, one hundred fifty-five".