5500668661 has 8 divisors (see below), whose sum is σ = 5873313600. Its totient is φ = 5139147552.

The previous prime is 5500668659. The next prime is 5500668671. The reversal of 5500668661 is 1668660055.

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

It is a cyclic number.

It is not a de Polignac number, because 5500668661 - 2¹ = 5500668659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500668671) 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, 2779936 + ... + 2781913.

It is an arithmetic number, because the mean of its divisors is an integer number (734164200).

Almost surely, 2^5500668661 is an apocalyptic number.

It is an amenable number.

5500668661 is a deficient number, since it is larger than the sum of its proper divisors (372644939).

5500668661 is a wasteful number, since it uses less digits than its factorization.

5500668661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561915.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 5500668661 is about 74166.4928454892. The cubic root of 5500668661 is about 1765.2456982870.

The spelling of 5500668661 in words is "five billion, five hundred million, six hundred sixty-eight thousand, six hundred sixty-one".