551409689204000 has 192 divisors, whose sum is σ = 1478019333772800. Its totient is φ = 200507071744000.

The previous prime is 551409689203963. The next prime is 551409689204021. The reversal of 551409689204000 is 402986904155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1805563316 + ... + 1805868684.

It is an arithmetic number, because the mean of its divisors is an integer number (7698017363400).

Almost surely, 2^{551409689204000} is an apocalyptic number.

551409689204000 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 551409689204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (739009666886400).

551409689204000 is an abundant number, since it is smaller than the sum of its proper divisors (926609644568800).

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

551409689204000 is a wasteful number, since it uses less digits than its factorization.

551409689204000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346444 (or 346426 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 551409689204000 in words is "five hundred fifty-one trillion, four hundred nine billion, six hundred eighty-nine million, two hundred four thousand".