2660509494 has 24 divisors (see below), whose sum is σ = 5920234320. Its totient is φ = 862867728.

The previous prime is 2660509493. The next prime is 2660509513. The reversal of 2660509494 is 4949050662.

2660509494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660509493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1996714 + ... + 1998045.

It is an arithmetic number, because the mean of its divisors is an integer number (246676430).

Almost surely, 2^2660509494 is an apocalyptic number.

2660509494 is an abundant number, since it is smaller than the sum of its proper divisors (3259724826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660509494 is a wasteful number, since it uses less digits than its factorization.

2660509494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994804 (or 3994801 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 2660509494 is about 51580.1269288861. The cubic root of 2660509494 is about 1385.6544399411.

The spelling of 2660509494 in words is "two billion, six hundred sixty million, five hundred nine thousand, four hundred ninety-four".