10501666666 has 8 divisors (see below), whose sum is σ = 16679117700. Its totient is φ = 4941960768.

The previous prime is 10501666627. The next prime is 10501666667. The reversal of 10501666666 is 66666610501.

It can be written as a sum of positive squares in 2 ways, for example, as 10345941225 + 155725441 = 101715^2 + 12479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10501666666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10501666667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154436241 + ... + 154436308.

Almost surely, 2^10501666666 is an apocalyptic number.

10501666666 is a deficient number, since it is larger than the sum of its proper divisors (6177451034).

10501666666 is a wasteful number, since it uses less digits than its factorization.

10501666666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308872568.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 10501666666 in words is "ten billion, five hundred one million, six hundred sixty-six thousand, six hundred sixty-six".