206051564345 has 64 divisors (see below), whose sum is σ = 278746272000. Its totient is φ = 144948311040.

The previous prime is 206051564321. The next prime is 206051564357. The reversal of 206051564345 is 543465150602.

It is a happy number.

It is not a de Polignac number, because 206051564345 - 2³⁴ = 188871695161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60370859 + ... + 60374271.

It is an arithmetic number, because the mean of its divisors is an integer number (4355410500).

Almost surely, 2^206051564345 is an apocalyptic number.

It is an amenable number.

206051564345 is a deficient number, since it is larger than the sum of its proper divisors (72694707655).

206051564345 is a wasteful number, since it uses less digits than its factorization.

206051564345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 206051564345 in words is "two hundred six billion, fifty-one million, five hundred sixty-four thousand, three hundred forty-five".