7616600681 has 2 divisors, whose sum is σ = 7616600682. Its totient is φ = 7616600680.

The previous prime is 7616600657. The next prime is 7616600683. The reversal of 7616600681 is 1860066167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7611690025 + 4910656 = 87245^2 + 2216^2 .

It is an emirp because it is prime and its reverse (1860066167) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7616600681 is a prime.

It is a super-2 number, since 2×7616600681² (a number of 21 digits) contains 22 as substring.

Together with 7616600683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7616600683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3808300340 + 3808300341.

It is an arithmetic number, because the mean of its divisors is an integer number (3808300341).

Almost surely, 2^7616600681 is an apocalyptic number.

It is an amenable number.

7616600681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7616600681 is an equidigital number, since it uses as much as digits as its factorization.

7616600681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 7616600681 is about 87273.1383702912. The cubic root of 7616600681 is about 1967.5256179220.

The spelling of 7616600681 in words is "seven billion, six hundred sixteen million, six hundred thousand, six hundred eighty-one".