7616826666 has 48 divisors (see below), whose sum is σ = 17932112640. Its totient is φ = 2327719680.

The previous prime is 7616826661. The next prime is 7616826667. The reversal of 7616826666 is 6666286167.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7616826661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348615 + ... + 369818.

It is an arithmetic number, because the mean of its divisors is an integer number (373585680).

Almost surely, 2^7616826666 is an apocalyptic number.

7616826666 is an abundant number, since it is smaller than the sum of its proper divisors (10315285974).

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

7616826666 is a wasteful number, since it uses less digits than its factorization.

7616826666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718491 (or 718488 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 7616826666 is about 87274.4330603184. The cubic root of 7616826666 is about 1967.5450765973.

The spelling of 7616826666 in words is "seven billion, six hundred sixteen million, eight hundred twenty-six thousand, six hundred sixty-six".