216246159990 has 96 divisors (see below), whose sum is σ = 646872782400. Its totient is φ = 49095942912.

The previous prime is 216246159977. The next prime is 216246160019. The reversal of 216246159990 is 99951642612.

216246159990 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 46 + 1 + 599 + 9 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1057969 + ... + 1245708.

It is an arithmetic number, because the mean of its divisors is an integer number (6738258150).

Almost surely, 2^216246159990 is an apocalyptic number.

216246159990 is an abundant number, since it is smaller than the sum of its proper divisors (430626622410).

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

216246159990 is a wasteful number, since it uses less digits than its factorization.

216246159990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303846 (or 2303843 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 216246159990 in words is "two hundred sixteen billion, two hundred forty-six million, one hundred fifty-nine thousand, nine hundred ninety".