2601653066 has 16 divisors (see below), whose sum is σ = 3927203784. Its totient is φ = 1292611584.

The previous prime is 2601653063. The next prime is 2601653077. The reversal of 2601653066 is 6603561062.

It can be written as a sum of positive squares in 4 ways, for example, as 2582774041 + 18879025 = 50821^2 + 4345^2 .

It is not an unprimeable number, because it can be changed into a prime (2601653063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200570 + ... + 213146.

Almost surely, 2^2601653066 is an apocalyptic number.

2601653066 is a deficient number, since it is larger than the sum of its proper divisors (1325550718).

2601653066 is a wasteful number, since it uses less digits than its factorization.

2601653066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 2601653066 is about 51006.4022059976. The cubic root of 2601653066 is about 1375.3602257953.

The spelling of 2601653066 in words is "two billion, six hundred one million, six hundred fifty-three thousand, sixty-six".