16806581426 has 8 divisors (see below), whose sum is σ = 25211764080. Its totient is φ = 8402660068.

The previous prime is 16806581387. The next prime is 16806581431. The reversal of 16806581426 is 62418560861.

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

It is a super-2 number, since 2×16806581426² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281276 + ... + 335751.

It is an arithmetic number, because the mean of its divisors is an integer number (3151470510).

Almost surely, 2^16806581426 is an apocalyptic number.

16806581426 is a deficient number, since it is larger than the sum of its proper divisors (8405182654).

16806581426 is a wasteful number, since it uses less digits than its factorization.

16806581426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630648.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 16806581426 in words is "sixteen billion, eight hundred six million, five hundred eighty-one thousand, four hundred twenty-six".