16756794466 has 4 divisors (see below), whose sum is σ = 25135191702. Its totient is φ = 8378397232.

The previous prime is 16756794451. The next prime is 16756794479. The reversal of 16756794466 is 66449765761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66449765761 = 31 ⋅2143540831.

It can be written as a sum of positive squares in only one way, i.e., 11507067441 + 5249727025 = 107271^2 + 72455^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189198615 + ... + 4189198618.

Almost surely, 2^16756794466 is an apocalyptic number.

16756794466 is a deficient number, since it is larger than the sum of its proper divisors (8378397236).

16756794466 is an equidigital number, since it uses as much as digits as its factorization.

16756794466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378397235.

The product of its digits is 45722880, while the sum is 61.

The spelling of 16756794466 in words is "sixteen billion, seven hundred fifty-six million, seven hundred ninety-four thousand, four hundred sixty-six".