10666346660 has 24 divisors (see below), whose sum is σ = 22405110840. Its totient is φ = 4265437184.

The previous prime is 10666346651. The next prime is 10666346671. The reversal of 10666346660 is 6664366601.

It can be written as a sum of positive squares in 4 ways, for example, as 17757796 + 10648588864 = 4214^2 + 103192^2 .

It is a super-2 number, since 2×10666346660² (a number of 21 digits) contains 22 as substring.

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, 12932 + ... + 146628.

It is an arithmetic number, because the mean of its divisors is an integer number (933546285).

Almost surely, 2^10666346660 is an apocalyptic number.

10666346660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10666346660 is an abundant number, since it is smaller than the sum of its proper divisors (11738764180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10666346660 is a wasteful number, since it uses less digits than its factorization.

10666346660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137695 (or 137693 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 10666346660 in words is "ten billion, six hundred sixty-six million, three hundred forty-six thousand, six hundred sixty".