551925473616 has 200 divisors, whose sum is σ = 1798869650688. Its totient is φ = 161854848000.

The previous prime is 551925473599. The next prime is 551925473621. The reversal of 551925473616 is 616374529155.

551925473616 is a `hidden beast` number, since 5 + 5 + 1 + 92 + 547 + 3 + 6 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 182505 + ... + 1066376.

Almost surely, 2^551925473616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551925473616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899434825344).

551925473616 is an abundant number, since it is smaller than the sum of its proper divisors (1246944177072).

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

551925473616 is a wasteful number, since it uses less digits than its factorization.

551925473616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248943 (or 1248928 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The spelling of 551925473616 in words is "five hundred fifty-one billion, nine hundred twenty-five million, four hundred seventy-three thousand, six hundred sixteen".