216200435461 has 4 divisors (see below), whose sum is σ = 216202135500. Its totient is φ = 216198735424.

The previous prime is 216200435431. The next prime is 216200435501. The reversal of 216200435461 is 164534002612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124445967361 + 91754468100 = 352769^2 + 302910^2 .

It is a cyclic number.

It is not a de Polignac number, because 216200435461 - 2²⁷ = 216066217733 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 (216200435401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642346 + ... + 919243.

It is an arithmetic number, because the mean of its divisors is an integer number (54050533875).

Almost surely, 2^216200435461 is an apocalyptic number.

It is an amenable number.

216200435461 is a deficient number, since it is larger than the sum of its proper divisors (1700039).

216200435461 is a wasteful number, since it uses less digits than its factorization.

216200435461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700038.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 216200435461 in words is "two hundred sixteen billion, two hundred million, four hundred thirty-five thousand, four hundred sixty-one".