551666453042100 has 144 divisors (see below), whose sum is σ = 1832905191559680. Its totient is φ = 126698515516800.

The previous prime is 551666453042071. The next prime is 551666453042123. The reversal of 551666453042100 is 1240354666155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 551666453042100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4399191312 + ... + 4399316711.

It is an arithmetic number, because the mean of its divisors is an integer number (12728508274720).

Almost surely, 2^{551666453042100} is an apocalyptic number.

551666453042100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551666453042100 is an abundant number, since it is smaller than the sum of its proper divisors (1281238738517580).

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

551666453042100 is a wasteful number, since it uses less digits than its factorization.

551666453042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798508070 (or 8798508063 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 551666453042100 in words is "five hundred fifty-one trillion, six hundred sixty-six billion, four hundred fifty-three million, forty-two thousand, one hundred".