216345526 has 16 divisors (see below), whose sum is σ = 328801824. Its totient is φ = 106752384.

The previous prime is 216345517. The next prime is 216345527. The reversal of 216345526 is 625543612.

It is a junction number, because it is equal to n+sod(n) for n = 216345491 and 216345500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216345527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63646 + ... + 66958.

It is an arithmetic number, because the mean of its divisors is an integer number (20550114).

Almost surely, 2^216345526 is an apocalyptic number.

216345526 is a deficient number, since it is larger than the sum of its proper divisors (112456298).

216345526 is a wasteful number, since it uses less digits than its factorization.

216345526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its digits is 43200, while the sum is 34.

The square root of 216345526 is about 14708.6887926831. The cubic root of 216345526 is about 600.3197610393.

The spelling of 216345526 in words is "two hundred sixteen million, three hundred forty-five thousand, five hundred twenty-six".