154169543554 has 16 divisors (see below), whose sum is σ = 250419045240. Its totient is φ = 70762049280.

The previous prime is 154169543533. The next prime is 154169543581. The reversal of 154169543554 is 455345961451.

It can be written as a sum of positive squares in 4 ways, for example, as 99846520225 + 54323023329 = 315985^2 + 233073^2 .

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, 16375399 + ... + 16384810.

Almost surely, 2^154169543554 is an apocalyptic number.

154169543554 is a deficient number, since it is larger than the sum of its proper divisors (96249501686).

154169543554 is a wasteful number, since it uses less digits than its factorization.

154169543554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32760405.

The product of its digits is 6480000, while the sum is 52.

The spelling of 154169543554 in words is "one hundred fifty-four billion, one hundred sixty-nine million, five hundred forty-three thousand, five hundred fifty-four".