7666836197 has 8 divisors (see below), whose sum is σ = 7791597216. Its totient is φ = 7542379152.

The previous prime is 7666836181. The next prime is 7666836217. The reversal of 7666836197 is 7916386667.

It is a happy number.

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 7666836197 - 2⁴ = 7666836181 is a prime.

It is a super-3 number, since 3×7666836197³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666836797) 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, 24863 + ... + 126300.

It is an arithmetic number, because the mean of its divisors is an integer number (973949652).

Almost surely, 2^7666836197 is an apocalyptic number.

It is an amenable number.

7666836197 is a deficient number, since it is larger than the sum of its proper divisors (124761019).

7666836197 is a wasteful number, since it uses less digits than its factorization.

7666836197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151987.

The product of its digits is 13716864, while the sum is 59.

The square root of 7666836197 is about 87560.4716581632. The cubic root of 7666836197 is about 1971.8417672364.

The spelling of 7666836197 in words is "seven billion, six hundred sixty-six million, eight hundred thirty-six thousand, one hundred ninety-seven".