206478016 has 56 divisors (see below), whose sum is σ = 433557680. Its totient is φ = 97293312.

The previous prime is 206478001. The next prime is 206478029. The reversal of 206478016 is 610874602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336526 + ... + 337138.

Almost surely, 2^206478016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206478016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216778840).

206478016 is an abundant number, since it is smaller than the sum of its proper divisors (227079664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206478016 is a wasteful number, since it uses less digits than its factorization.

206478016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 206478016 is about 14369.3429216509. The cubic root of 206478016 is about 591.0505232884.

The spelling of 206478016 in words is "two hundred six million, four hundred seventy-eight thousand, sixteen".