206121160615 has 8 divisors (see below), whose sum is σ = 247398946848. Its totient is φ = 164861225760.

The previous prime is 206121160613. The next prime is 206121160627. The reversal of 206121160615 is 516061121602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206121160615 - 2¹ = 206121160613 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 (206121160613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4437427 + ... + 4483636.

It is an arithmetic number, because the mean of its divisors is an integer number (30924868356).

Almost surely, 2^206121160615 is an apocalyptic number.

206121160615 is a deficient number, since it is larger than the sum of its proper divisors (41277786233).

206121160615 is an equidigital number, since it uses as much as digits as its factorization.

206121160615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8925689.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 206121160615 in words is "two hundred six billion, one hundred twenty-one million, one hundred sixty thousand, six hundred fifteen".