551545545154 has 16 divisors (see below), whose sum is σ = 847818474048. Its totient is φ = 269019310032.

The previous prime is 551545545143. The next prime is 551545545169. The reversal of 551545545154 is 451545545155.

It is a super-4 number, since 4×551545545154⁴ (a number of 48 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551545545098 and 551545545107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19966837 + ... + 19994440.

It is an arithmetic number, because the mean of its divisors is an integer number (52988654628).

Almost surely, 2^551545545154 is an apocalyptic number.

551545545154 is a deficient number, since it is larger than the sum of its proper divisors (296272928894).

551545545154 is a wasteful number, since it uses less digits than its factorization.

551545545154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39961449.

The product of its digits is 5000000, while the sum is 49.

Subtracting from 551545545154 its reverse (451545545155), we obtain a palindrome (99999999999).

The spelling of 551545545154 in words is "five hundred fifty-one billion, five hundred forty-five million, five hundred forty-five thousand, one hundred fifty-four".