216607516479 has 6 divisors (see below), whose sum is σ = 312877523816. Its totient is φ = 144405010980.

The previous prime is 216607516459. The next prime is 216607516483. The reversal of 216607516479 is 974615706612.

216607516479 is a `hidden beast` number, since 2 + 16 + 607 + 5 + 16 + 4 + 7 + 9 = 666.

It is not a de Polignac number, because 216607516479 - 2¹⁵ = 216607483711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216607516439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12033750907 + ... + 12033750924.

Almost surely, 2^216607516479 is an apocalyptic number.

216607516479 is a deficient number, since it is larger than the sum of its proper divisors (96270007337).

216607516479 is a wasteful number, since it uses less digits than its factorization.

216607516479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24067501837 (or 24067501834 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 216607516479 in words is "two hundred sixteen billion, six hundred seven million, five hundred sixteen thousand, four hundred seventy-nine".