7636166506 has 4 divisors (see below), whose sum is σ = 11454249762. Its totient is φ = 3818083252.

The previous prime is 7636166501. The next prime is 7636166513. The reversal of 7636166506 is 6056616367.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7544485881 + 91680625 = 86859^2 + 9575^2 .

It is a super-2 number, since 2×7636166506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7636166501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909041625 + ... + 1909041628.

Almost surely, 2^7636166506 is an apocalyptic number.

7636166506 is a deficient number, since it is larger than the sum of its proper divisors (3818083256).

7636166506 is a wasteful number, since it uses less digits than its factorization.

7636166506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818083255.

The product of its (nonzero) digits is 816480, while the sum is 46.

The square root of 7636166506 is about 87385.1618182401. The cubic root of 7636166506 is about 1969.2089298930.

The spelling of 7636166506 in words is "seven billion, six hundred thirty-six million, one hundred sixty-six thousand, five hundred six".