551770123198 has 16 divisors (see below), whose sum is σ = 954569547360. Its totient is φ = 234303433056.

The previous prime is 551770123141. The next prime is 551770123199. The reversal of 551770123198 is 891321077155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551770123199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180788161 + ... + 180791212.

It is an arithmetic number, because the mean of its divisors is an integer number (59660596710).

Almost surely, 2^551770123198 is an apocalyptic number.

551770123198 is a deficient number, since it is larger than the sum of its proper divisors (402799424162).

551770123198 is a wasteful number, since it uses less digits than its factorization.

551770123198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361579491.

The product of its (nonzero) digits is 529200, while the sum is 49.

The spelling of 551770123198 in words is "five hundred fifty-one billion, seven hundred seventy million, one hundred twenty-three thousand, one hundred ninety-eight".