216040143908 has 12 divisors (see below), whose sum is σ = 378074634672. Its totient is φ = 108018819720.

The previous prime is 216040143901. The next prime is 216040143941. The reversal of 216040143908 is 809341040612.

It is not an unprimeable number, because it can be changed into a prime (216040143901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151823 + ... + 674633.

It is an arithmetic number, because the mean of its divisors is an integer number (31506219556).

Almost surely, 2^216040143908 is an apocalyptic number.

It is an amenable number.

216040143908 is a deficient number, since it is larger than the sum of its proper divisors (162034490764).

216040143908 is a wasteful number, since it uses less digits than its factorization.

216040143908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626122 (or 626120 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 216040143908 in words is "two hundred sixteen billion, forty million, one hundred forty-three thousand, nine hundred eight".