5516661207 has 4 divisors (see below), whose sum is σ = 7355548280. Its totient is φ = 3677774136.

The previous prime is 5516661197. The next prime is 5516661223. The reversal of 5516661207 is 7021666155.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5516661207 - 2¹⁶ = 5516595671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5516661287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919443532 + ... + 919443537.

It is an arithmetic number, because the mean of its divisors is an integer number (1838887070).

Almost surely, 2^5516661207 is an apocalyptic number.

5516661207 is a deficient number, since it is larger than the sum of its proper divisors (1838887073).

5516661207 is a wasteful number, since it uses less digits than its factorization.

5516661207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838887072.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 5516661207 is about 74274.2297637613. The cubic root of 5516661207 is about 1766.9547909846.

The spelling of 5516661207 in words is "five billion, five hundred sixteen million, six hundred sixty-one thousand, two hundred seven".