549521406000 has 960 divisors, whose sum is σ = 2293122873600. Its totient is φ = 119992320000.

The previous prime is 549521405999. The next prime is 549521406011. The reversal of 549521406000 is 604125945.

549521406000 is a `hidden beast` number, since 5 + 4 + 9 + 5 + 2 + 1 + 40 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 369053256 + ... + 369054744.

It is an arithmetic number, because the mean of its divisors is an integer number (2388669660).

Almost surely, 2^549521406000 is an apocalyptic number.

549521406000 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 549521406000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146561436800).

549521406000 is an abundant number, since it is smaller than the sum of its proper divisors (1743601467600).

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

549521406000 is a wasteful number, since it uses less digits than its factorization.

549521406000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 549521406000 in words is "five hundred forty-nine billion, five hundred twenty-one million, four hundred six thousand".