7666836356 has 6 divisors (see below), whose sum is σ = 13416963630. Its totient is φ = 3833418176.

The previous prime is 7666836337. The next prime is 7666836379. The reversal of 7666836356 is 6536386667.

It can be written as a sum of positive squares in only one way, i.e., 7470836356 + 196000000 = 86434^2 + 14000^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 958354541 + ... + 958354548.

It is an arithmetic number, because the mean of its divisors is an integer number (2236160605).

Almost surely, 2^7666836356 is an apocalyptic number.

It is an amenable number.

7666836356 is a deficient number, since it is larger than the sum of its proper divisors (5750127274).

7666836356 is a wasteful number, since it uses less digits than its factorization.

7666836356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916709093 (or 1916709091 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 56.

The square root of 7666836356 is about 87560.4725661071. The cubic root of 7666836356 is about 1971.8417808675.

The spelling of 7666836356 in words is "seven billion, six hundred sixty-six million, eight hundred thirty-six thousand, three hundred fifty-six".