551316171432 has 64 divisors (see below), whose sum is σ = 1496000378880. Its totient is φ = 168300018432.

The previous prime is 551316171353. The next prime is 551316171491. The reversal of 551316171432 is 234171613155.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6917223 + ... + 6996470.

It is an arithmetic number, because the mean of its divisors is an integer number (23375005920).

Almost surely, 2^551316171432 is an apocalyptic number.

551316171432 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

551316171432 is an abundant number, since it is smaller than the sum of its proper divisors (944684207448).

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

551316171432 is a wasteful number, since it uses less digits than its factorization.

551316171432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13913842 (or 13913838 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

Adding to 551316171432 its reverse (234171613155), we get a palindrome (785487784587).

The spelling of 551316171432 in words is "five hundred fifty-one billion, three hundred sixteen million, one hundred seventy-one thousand, four hundred thirty-two".