7006550766121 has 3 divisors (see below), whose sum is σ = 7006553413111. Its totient is φ = 7006548119132.

The previous prime is 7006550766107. The next prime is 7006550766167. The reversal of 7006550766121 is 1216670556007.

It is a happy number.

The square root of 7006550766121 is 2646989.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 658468954521 + 6348081811600 = 811461^2 + 2519540^2 .

It is not a de Polignac number, because 7006550766121 - 2⁷ = 7006550765993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7006550766221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1323495 + ... + 3970483.

Almost surely, 2^{7006550766121} is an apocalyptic number.

7006550766121 is the 2646989-th square number.

7006550766121 is the 1323495-th centered octagonal number.

It is an amenable number.

7006550766121 is a deficient number, since it is larger than the sum of its proper divisors (2646990).

7006550766121 is an frugal number, since it uses more digits than its factorization.

7006550766121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293978 (or 2646989 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 7006550766121 in words is "seven trillion, six billion, five hundred fifty million, seven hundred sixty-six thousand, one hundred twenty-one".