6550411840 has 112 divisors (see below), whose sum is σ = 17854647552. Its totient is φ = 2242308096.

The previous prime is 6550411807. The next prime is 6550411853. The reversal of 6550411840 is 481140556.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×6550411840² = 85815790547224371200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6550411796 and 6550411805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1693749 + ... + 1697611.

It is an arithmetic number, because the mean of its divisors is an integer number (159416496).

Almost surely, 2^6550411840 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 6550411840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8927323776).

6550411840 is an abundant number, since it is smaller than the sum of its proper divisors (11304235712).

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

6550411840 is a wasteful number, since it uses less digits than its factorization.

6550411840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 6550411840 is about 80934.6145972167. The cubic root of 6550411840 is about 1871.0678450188.

The spelling of 6550411840 in words is "six billion, five hundred fifty million, four hundred eleven thousand, eight hundred forty".