2646560461 has 8 divisors (see below), whose sum is σ = 2678161304. Its totient is φ = 2615146560.

The previous prime is 2646560453. The next prime is 2646560467. The reversal of 2646560461 is 1640656462.

It can be written as a sum of positive squares in 4 ways, for example, as 131537961 + 2515022500 = 11469^2 + 50150^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2646560461 - 2³ = 2646560453 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 (2646560467) 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, 18150 + ... + 74983.

It is an arithmetic number, because the mean of its divisors is an integer number (334770163).

Almost surely, 2^2646560461 is an apocalyptic number.

It is an amenable number.

2646560461 is a deficient number, since it is larger than the sum of its proper divisors (31600843).

2646560461 is a wasteful number, since it uses less digits than its factorization.

2646560461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93471.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 2646560461 is about 51444.7321015476. The cubic root of 2646560461 is about 1383.2285364201.

The spelling of 2646560461 in words is "two billion, six hundred forty-six million, five hundred sixty thousand, four hundred sixty-one".