551533006416 has 160 divisors (see below), whose sum is σ = 1641280094208. Its totient is φ = 156329671680.

The previous prime is 551533006379. The next prime is 551533006417. The reversal of 551533006416 is 614600335155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551533006417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98643781 + ... + 98649371.

Almost surely, 2^551533006416 is an apocalyptic number.

551533006416 is a gapful number since it is divisible by the number (56) 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 551533006416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820640047104).

551533006416 is an abundant number, since it is smaller than the sum of its proper divisors (1089747087792).

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

551533006416 is a wasteful number, since it uses less digits than its factorization.

551533006416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889 (or 7883 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 551533006416 in words is "five hundred fifty-one billion, five hundred thirty-three million, six thousand, four hundred sixteen".