154205116405 has 16 divisors (see below), whose sum is σ = 186604314624. Its totient is φ = 122326364160.

The previous prime is 154205116397. The next prime is 154205116411. The reversal of 154205116405 is 504611502451.

It is not a de Polignac number, because 154205116405 - 2³ = 154205116397 is a prime.

It is a super-5 number, since 5×154205116405⁵ (a number of 57 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1123189 + ... + 1252981.

It is an arithmetic number, because the mean of its divisors is an integer number (11662769664).

Almost surely, 2^154205116405 is an apocalyptic number.

It is an amenable number.

154205116405 is a deficient number, since it is larger than the sum of its proper divisors (32399198219).

154205116405 is a wasteful number, since it uses less digits than its factorization.

154205116405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131796.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 154205116405 its reverse (504611502451), we get a palindrome (658816618856).

The spelling of 154205116405 in words is "one hundred fifty-four billion, two hundred five million, one hundred sixteen thousand, four hundred five".