16631440466 has 8 divisors (see below), whose sum is σ = 24951390384. Its totient is φ = 8314310340.

The previous prime is 16631440403. The next prime is 16631440471. The reversal of 16631440466 is 66404413661.

It is a happy number.

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

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, 690140 + ... + 713831.

It is an arithmetic number, because the mean of its divisors is an integer number (3118923798).

Almost surely, 2^16631440466 is an apocalyptic number.

16631440466 is a deficient number, since it is larger than the sum of its proper divisors (8319949918).

16631440466 is a wasteful number, since it uses less digits than its factorization.

16631440466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409896.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 16631440466 in words is "sixteen billion, six hundred thirty-one million, four hundred forty thousand, four hundred sixty-six".