216515402048 has 84 divisors (see below), whose sum is σ = 487492096896. Its totient is φ = 95241273600.

The previous prime is 216515402039. The next prime is 216515402053. The reversal of 216515402048 is 840204515612.

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 11 ways as a sum of consecutive naturals, for example, 210890 + ... + 691017.

It is an arithmetic number, because the mean of its divisors is an integer number (5803477344).

Almost surely, 2^216515402048 is an apocalyptic number.

It is an amenable number.

216515402048 is an abundant number, since it is smaller than the sum of its proper divisors (270976694848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216515402048 is a wasteful number, since it uses less digits than its factorization.

216515402048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901972 (or 901951 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 216515402048 in words is "two hundred sixteen billion, five hundred fifteen million, four hundred two thousand, forty-eight".