2064516461 has 6 divisors (see below), whose sum is σ = 2401580430. Its totient is φ = 1769585496.

The previous prime is 2064516451. The next prime is 2064516479. The reversal of 2064516461 is 1646154602.

It can be written as a sum of positive squares in only one way, i.e., 1934328361 + 130188100 = 43981^2 + 11410^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2064516461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064516451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21066446 + ... + 21066543.

It is an arithmetic number, because the mean of its divisors is an integer number (400263405).

Almost surely, 2^2064516461 is an apocalyptic number.

It is an amenable number.

2064516461 is a deficient number, since it is larger than the sum of its proper divisors (337063969).

2064516461 is an equidigital number, since it uses as much as digits as its factorization.

2064516461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42133003 (or 42132996 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2064516461 is about 45436.9503928246. The cubic root of 2064516461 is about 1273.3255396320.

The spelling of 2064516461 in words is "two billion, sixty-four million, five hundred sixteen thousand, four hundred sixty-one".