7666836147 has 12 divisors (see below), whose sum is σ = 11093519320. Its totient is φ = 5102362368.

The previous prime is 7666836143. The next prime is 7666836181. The reversal of 7666836147 is 7416386667.

It is not a de Polignac number, because 7666836147 - 2² = 7666836143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7666836093 and 7666836102.

It is not an unprimeable number, because it can be changed into a prime (7666836143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732997 + ... + 743382.

Almost surely, 2^7666836147 is an apocalyptic number.

7666836147 is a deficient number, since it is larger than the sum of its proper divisors (3426683173).

7666836147 is a wasteful number, since it uses less digits than its factorization.

7666836147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476962 (or 1476959 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 7666836147 is about 87560.4713726462. The cubic root of 7666836147 is about 1971.8417629498.

The spelling of 7666836147 in words is "seven billion, six hundred sixty-six million, eight hundred thirty-six thousand, one hundred forty-seven".