7661003101 has 2 divisors, whose sum is σ = 7661003102. Its totient is φ = 7661003100.

The previous prime is 7661003099. The next prime is 7661003153. The reversal of 7661003101 is 1013001667.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7598608900 + 62394201 = 87170^2 + 7899^2 .

It is a cyclic number.

It is not a de Polignac number, because 7661003101 - 2¹ = 7661003099 is a prime.

Together with 7661003099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7661003171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830501550 + 3830501551.

It is an arithmetic number, because the mean of its divisors is an integer number (3830501551).

Almost surely, 2^7661003101 is an apocalyptic number.

It is an amenable number.

7661003101 is a deficient number, since it is larger than the sum of its proper divisors (1).

7661003101 is an equidigital number, since it uses as much as digits as its factorization.

7661003101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7661003101 is about 87527.1563630397. The cubic root of 7661003101 is about 1971.3415669695.

Adding to 7661003101 its reverse (1013001667), we get a palindrome (8674004768).

The spelling of 7661003101 in words is "seven billion, six hundred sixty-one million, three thousand, one hundred one".