16466494243 has 4 divisors (see below), whose sum is σ = 16466912280. Its totient is φ = 16466076208.

The previous prime is 16466494237. The next prime is 16466494249. The reversal of 16466494243 is 34249466461.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16466494237) and next prime (16466494249).

It is a cyclic number.

It is not a de Polignac number, because 16466494243 - 2⁵ = 16466494211 is a prime.

It is a super-2 number, since 2×16466494243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16466494249) 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 3 ways as a sum of consecutive naturals, for example, 142978 + ... + 231031.

It is an arithmetic number, because the mean of its divisors is an integer number (4116728070).

Almost surely, 2^16466494243 is an apocalyptic number.

16466494243 is a deficient number, since it is larger than the sum of its proper divisors (418037).

16466494243 is an equidigital number, since it uses as much as digits as its factorization.

16466494243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418036.

The product of its digits is 2985984, while the sum is 49.

The spelling of 16466494243 in words is "sixteen billion, four hundred sixty-six million, four hundred ninety-four thousand, two hundred forty-three".