206064513 has 16 divisors (see below), whose sum is σ = 305907840. Its totient is φ = 137094192.

The previous prime is 206064503. The next prime is 206064539. The reversal of 206064513 is 315460602.

206064513 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 645 + 13 = 666.

It is not a de Polignac number, because 206064513 - 2²⁵ = 172510081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (206064503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5995 + ... + 21167.

It is an arithmetic number, because the mean of its divisors is an integer number (19119240).

Almost surely, 2^206064513 is an apocalyptic number.

It is an amenable number.

206064513 is a deficient number, since it is larger than the sum of its proper divisors (99843327).

206064513 is a wasteful number, since it uses less digits than its factorization.

206064513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15685 (or 15679 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 206064513 is about 14354.9473353266. The cubic root of 206064513 is about 590.6557040223.

The spelling of 206064513 in words is "two hundred six million, sixty-four thousand, five hundred thirteen".