268216659 has 12 divisors (see below), whose sum is σ = 389262952. Its totient is φ = 177962400.

The previous prime is 268216657. The next prime is 268216693. The reversal of 268216659 is 956612862.

It is not a de Polignac number, because 268216659 - 2¹ = 268216657 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (268216651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68722 + ... + 72519.

Almost surely, 2^268216659 is an apocalyptic number.

268216659 is a deficient number, since it is larger than the sum of its proper divisors (121046293).

268216659 is a wasteful number, since it uses less digits than its factorization.

268216659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141458 (or 141455 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 268216659 is about 16377.3214842965. The cubic root of 268216659 is about 644.9042655822.

The spelling of 268216659 in words is "two hundred sixty-eight million, two hundred sixteen thousand, six hundred fifty-nine".