2665417479660 has 144 divisors (see below), whose sum is σ = 8712138314880. Its totient is φ = 655717870080.

The previous prime is 2665417479581. The next prime is 2665417479701. The reversal of 2665417479660 is 669747145662.

2665417479660 is a `hidden beast` number, since 2 + 6 + 65 + 41 + 7 + 479 + 6 + 60 = 666.

2665417479660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3665805 + ... + 4332315.

It is an arithmetic number, because the mean of its divisors is an integer number (60500960520).

Almost surely, 2^{2665417479660} is an apocalyptic number.

2665417479660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665417479660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4356069157440).

2665417479660 is an abundant number, since it is smaller than the sum of its proper divisors (6046720835220).

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

2665417479660 is a wasteful number, since it uses less digits than its factorization.

2665417479660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668248 (or 668243 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 63.

The spelling of 2665417479660 in words is "two trillion, six hundred sixty-five billion, four hundred seventeen million, four hundred seventy-nine thousand, six hundred sixty".