2016456247 has 4 divisors (see below), whose sum is σ = 2171568280. Its totient is φ = 1861344216.

The previous prime is 2016456223. The next prime is 2016456259. The reversal of 2016456247 is 7426546102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7426546102 = 2 ⋅3713273051.

It is a cyclic number.

It is not a de Polignac number, because 2016456247 - 2¹¹ = 2016454199 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 (2016456847) 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, 77555997 + ... + 77556022.

It is an arithmetic number, because the mean of its divisors is an integer number (542892070).

Almost surely, 2^2016456247 is an apocalyptic number.

2016456247 is a deficient number, since it is larger than the sum of its proper divisors (155112033).

2016456247 is a wasteful number, since it uses less digits than its factorization.

2016456247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155112032.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2016456247 is about 44904.9690680219. The cubic root of 2016456247 is about 1263.3672106274.

The spelling of 2016456247 in words is "two billion, sixteen million, four hundred fifty-six thousand, two hundred forty-seven".