216039544988 has 24 divisors (see below), whose sum is σ = 382273500000. Its totient is φ = 106820333568.

The previous prime is 216039544979. The next prime is 216039544999. The reversal of 216039544988 is 889445930612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261713 + ... + 707511.

It is an arithmetic number, because the mean of its divisors is an integer number (15928062500).

Almost surely, 2^216039544988 is an apocalyptic number.

It is an amenable number.

216039544988 is a deficient number, since it is larger than the sum of its proper divisors (166233955012).

216039544988 is a wasteful number, since it uses less digits than its factorization.

216039544988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447149 (or 447147 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 216039544988 in words is "two hundred sixteen billion, thirty-nine million, five hundred forty-four thousand, nine hundred eighty-eight".