10668278686 has 16 divisors (see below), whose sum is σ = 17250131808. Its totient is φ = 4919032800.

The previous prime is 10668278671. The next prime is 10668278711. The reversal of 10668278686 is 68687286601.

It is a super-2 number, since 2×10668278686² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10668278686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172185 + ... + 225796.

It is an arithmetic number, because the mean of its divisors is an integer number (1078133238).

Almost surely, 2^10668278686 is an apocalyptic number.

10668278686 is a deficient number, since it is larger than the sum of its proper divisors (6581853122).

10668278686 is a wasteful number, since it uses less digits than its factorization.

10668278686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399027.

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 10668278686 in words is "ten billion, six hundred sixty-eight million, two hundred seventy-eight thousand, six hundred eighty-six".