10666654999 has 32 divisors (see below), whose sum is σ = 14335017984. Its totient is φ = 7665166080.

The previous prime is 10666654993. The next prime is 10666655003. The reversal of 10666654999 is 99945666601.

It is not a de Polignac number, because 10666654999 - 2⁹ = 10666654487 is a prime.

It is a super-2 number, since 2×10666654999² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10666654993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1219867 + ... + 1228579.

It is an arithmetic number, because the mean of its divisors is an integer number (447969312).

Almost surely, 2^10666654999 is an apocalyptic number.

10666654999 is a deficient number, since it is larger than the sum of its proper divisors (3668362985).

10666654999 is a wasteful number, since it uses less digits than its factorization.

10666654999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9967.

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 10666654999 in words is "ten billion, six hundred sixty-six million, six hundred fifty-four thousand, nine hundred ninety-nine".