1816466672 has 20 divisors (see below), whose sum is σ = 3521861640. Its totient is φ = 907599168.

The previous prime is 1816466651. The next prime is 1816466713. The reversal of 1816466672 is 2766646181.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15563 + ... + 62250.

It is an arithmetic number, because the mean of its divisors is an integer number (176093082).

Almost surely, 2^1816466672 is an apocalyptic number.

It is an amenable number.

1816466672 is a deficient number, since it is larger than the sum of its proper divisors (1705394968).

1816466672 is a wasteful number, since it uses less digits than its factorization.

1816466672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79280 (or 79274 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 1816466672 is about 42620.0266541446. The cubic root of 1816466672 is about 1220.1385384196.

The spelling of 1816466672 in words is "one billion, eight hundred sixteen million, four hundred sixty-six thousand, six hundred seventy-two".