7656667601 has 16 divisors (see below), whose sum is σ = 8532900288. Its totient is φ = 6811627200.

The previous prime is 7656667589. The next prime is 7656667643. The reversal of 7656667601 is 1067666567.

It is a cyclic number.

It is not a de Polignac number, because 7656667601 - 2¹⁸ = 7656405457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7656667601.

It is not an unprimeable number, because it can be changed into a prime (7656661601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103226 + ... + 161148.

It is an arithmetic number, because the mean of its divisors is an integer number (533306268).

Almost surely, 2^7656667601 is an apocalyptic number.

It is an amenable number.

7656667601 is a deficient number, since it is larger than the sum of its proper divisors (876232687).

7656667601 is a wasteful number, since it uses less digits than its factorization.

7656667601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58192.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The square root of 7656667601 is about 87502.3862588901. The cubic root of 7656667601 is about 1970.9696242003.

The spelling of 7656667601 in words is "seven billion, six hundred fifty-six million, six hundred sixty-seven thousand, six hundred one".