2061564513 has 8 divisors (see below), whose sum is σ = 2751855168. Its totient is φ = 1372825104.

The previous prime is 2061564509. The next prime is 2061564553. The reversal of 2061564513 is 3154651602.

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

It is not a de Polignac number, because 2061564513 - 2² = 2061564509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061564503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384706 + ... + 390027.

It is an arithmetic number, because the mean of its divisors is an integer number (343981896).

Almost surely, 2^2061564513 is an apocalyptic number.

It is an amenable number.

2061564513 is a deficient number, since it is larger than the sum of its proper divisors (690290655).

2061564513 is an equidigital number, since it uses as much as digits as its factorization.

2061564513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775623.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2061564513 is about 45404.4547704297. The cubic root of 2061564513 is about 1272.7183621521.

The spelling of 2061564513 in words is "two billion, sixty-one million, five hundred sixty-four thousand, five hundred thirteen".