551612065600 has 336 divisors, whose sum is σ = 1426390848000. Its totient is φ = 209710080000.

The previous prime is 551612065591. The next prime is 551612065607. The reversal of 551612065600 is 6560216155.

It is a self number, because there is not a number n which added to its sum of digits gives 551612065600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551612065607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 746430031 + ... + 746430769.

Almost surely, 2^551612065600 is an apocalyptic number.

551612065600 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 551612065600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713195424000).

551612065600 is an abundant number, since it is smaller than the sum of its proper divisors (874778782400).

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

551612065600 is a wasteful number, since it uses less digits than its factorization.

551612065600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 551612065600 in words is "five hundred fifty-one billion, six hundred twelve million, sixty-five thousand, six hundred".