550006616661 has 8 divisors (see below), whose sum is σ = 733351088064. Its totient is φ = 366666611520.

The previous prime is 550006616651. The next prime is 550006616683. The reversal of 550006616661 is 166616600055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550006616661 - 2²¹ = 550004519509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550006616651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817801 + ... + 1329966.

It is an arithmetic number, because the mean of its divisors is an integer number (91668886008).

Almost surely, 2^550006616661 is an apocalyptic number.

It is an amenable number.

550006616661 is a deficient number, since it is larger than the sum of its proper divisors (183344471403).

550006616661 is a wasteful number, since it uses less digits than its factorization.

550006616661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233131.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 550006616661 in words is "five hundred fifty billion, six million, six hundred sixteen thousand, six hundred sixty-one".