551315650170000 has 400 divisors, whose sum is σ = 1823237912358720. Its totient is φ = 143430647808000.

The previous prime is 551315650169959. The next prime is 551315650170007. The reversal of 551315650170000 is 71056513155.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×551315650170000² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551315650170007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1105280656 + ... + 1105779344.

Almost surely, 2^{551315650170000} is an apocalyptic number.

551315650170000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551315650170000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (911618956179360).

551315650170000 is an abundant number, since it is smaller than the sum of its proper divisors (1271922262188720).

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

551315650170000 is a wasteful number, since it uses less digits than its factorization.

551315650170000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499620 (or 499599 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 39.

The spelling of 551315650170000 in words is "five hundred fifty-one trillion, three hundred fifteen billion, six hundred fifty million, one hundred seventy thousand".