2660122603658 has 16 divisors (see below), whose sum is σ = 4299714512520. Its totient is φ = 1227007927296.

The previous prime is 2660122603651. The next prime is 2660122603667. The reversal of 2660122603658 is 8563062210662.

2660122603658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1709862218689 + 950260384969 = 1307617^2 + 974813^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2660122603651) 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, 30829703 + ... + 30915866.

Almost surely, 2^{2660122603658} is an apocalyptic number.

2660122603658 is a deficient number, since it is larger than the sum of its proper divisors (1639591908862).

2660122603658 is a wasteful number, since it uses less digits than its factorization.

2660122603658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61747241.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 2660122603658 in words is "two trillion, six hundred sixty billion, one hundred twenty-two million, six hundred three thousand, six hundred fifty-eight".