216450798552 has 48 divisors (see below), whose sum is σ = 587526615000. Its totient is φ = 71989564416.

The previous prime is 216450798517. The next prime is 216450798559. The reversal of 216450798552 is 255897054612.

216450798552 is a `hidden beast` number, since 2 + 1 + 6 + 4 + 507 + 9 + 85 + 52 = 666.

216450798552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216450798559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3315402 + ... + 3380057.

Almost surely, 2^216450798552 is an apocalyptic number.

It is an amenable number.

216450798552 is an abundant number, since it is smaller than the sum of its proper divisors (371075816448).

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

216450798552 is a wasteful number, since it uses less digits than its factorization.

216450798552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6695920 (or 6695913 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 216450798552 in words is "two hundred sixteen billion, four hundred fifty million, seven hundred ninety-eight thousand, five hundred fifty-two".