16466681938 has 8 divisors (see below), whose sum is σ = 28228597632. Its totient is φ = 7057149396.

The previous prime is 16466681927. The next prime is 16466681947. The reversal of 16466681938 is 83918666461.

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

It is a super-2 number, since 2×16466681938² (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, 588095770 + ... + 588095797.

It is an arithmetic number, because the mean of its divisors is an integer number (3528574704).

Almost surely, 2^16466681938 is an apocalyptic number.

16466681938 is a deficient number, since it is larger than the sum of its proper divisors (11761915694).

16466681938 is a wasteful number, since it uses less digits than its factorization.

16466681938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176191576.

The product of its digits is 8957952, while the sum is 58.

The spelling of 16466681938 in words is "sixteen billion, four hundred sixty-six million, six hundred eighty-one thousand, nine hundred thirty-eight".