2664368641 has 32 divisors (see below), whose sum is σ = 3045651840. Its totient is φ = 2309644800.

The previous prime is 2664368633. The next prime is 2664368647. The reversal of 2664368641 is 1468634662.

It is not a de Polignac number, because 2664368641 - 2³ = 2664368633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2664368591 and 2664368600.

It is not an unprimeable number, because it can be changed into a prime (2664368647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4079871 + ... + 4080523.

It is an arithmetic number, because the mean of its divisors is an integer number (95176620).

Almost surely, 2^2664368641 is an apocalyptic number.

It is an amenable number.

2664368641 is a deficient number, since it is larger than the sum of its proper divisors (381283199).

2664368641 is a wasteful number, since it uses less digits than its factorization.

2664368641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897.

The product of its digits is 995328, while the sum is 46.

The square root of 2664368641 is about 51617.5226158714. The cubic root of 2664368641 is about 1386.3240937207.

The spelling of 2664368641 in words is "two billion, six hundred sixty-four million, three hundred sixty-eight thousand, six hundred forty-one".