16866462005 has 16 divisors (see below), whose sum is σ = 21123469440. Its totient is φ = 12904233408.

The previous prime is 16866461993. The next prime is 16866462023. The reversal of 16866462005 is 50026466861.

It is a cyclic number.

It is not a de Polignac number, because 16866462005 - 2⁸ = 16866461749 is a prime.

It is a super-2 number, since 2×16866462005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 955994 + ... + 973476.

It is an arithmetic number, because the mean of its divisors is an integer number (1320216840).

Almost surely, 2^16866462005 is an apocalyptic number.

It is an amenable number.

16866462005 is a deficient number, since it is larger than the sum of its proper divisors (4257007435).

16866462005 is a wasteful number, since it uses less digits than its factorization.

16866462005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25900.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 16866462005 in words is "sixteen billion, eight hundred sixty-six million, four hundred sixty-two thousand, five".