216535233516426 has 96 divisors (see below), whose sum is σ = 512325541877760. Its totient is φ = 65550726727200.

The previous prime is 216535233516401. The next prime is 216535233516449. The reversal of 216535233516426 is 624615332535612.

216535233516426 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 3 + 52 + 33 + 516 + 42 + 6 = 666.

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, 2098747821 + ... + 2098850991.

It is an arithmetic number, because the mean of its divisors is an integer number (5336724394560).

Almost surely, 2^{216535233516426} is an apocalyptic number.

216535233516426 is an abundant number, since it is smaller than the sum of its proper divisors (295790308361334).

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

216535233516426 is a wasteful number, since it uses less digits than its factorization.

216535233516426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113752 (or 113749 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 54.

The spelling of 216535233516426 in words is "two hundred sixteen trillion, five hundred thirty-five billion, two hundred thirty-three million, five hundred sixteen thousand, four hundred twenty-six".