10678527661 has 2 divisors, whose sum is σ = 10678527662. Its totient is φ = 10678527660.

The previous prime is 10678527617. The next prime is 10678527667. The reversal of 10678527661 is 16672587601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10677295561 + 1232100 = 103331^2 + 1110^2 .

It is an emirp because it is prime and its reverse (16672587601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10678527661 - 2⁹ = 10678527149 is a prime.

It is a super-2 number, since 2×10678527661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10678527667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5339263830 + 5339263831.

It is an arithmetic number, because the mean of its divisors is an integer number (5339263831).

Almost surely, 2^10678527661 is an apocalyptic number.

It is an amenable number.

10678527661 is a deficient number, since it is larger than the sum of its proper divisors (1).

10678527661 is an equidigital number, since it uses as much as digits as its factorization.

10678527661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 10678527661 in words is "ten billion, six hundred seventy-eight million, five hundred twenty-seven thousand, six hundred sixty-one".