2666480249688 has 32 divisors (see below), whose sum is σ = 6675602924400. Its totient is φ = 887573109888.

The previous prime is 2666480249683. The next prime is 2666480249729. The reversal of 2666480249688 is 8869420846662.

It is a super-2 number, since 2×2666480249688² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666480249683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78335131 + ... + 78369162.

Almost surely, 2^{2666480249688} is an apocalyptic number.

It is an amenable number.

2666480249688 is an abundant number, since it is smaller than the sum of its proper divisors (4009122674712).

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

2666480249688 is a wasteful number, since it uses less digits than its factorization.

2666480249688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156705011 (or 156705007 counting only the distinct ones).

The product of its (nonzero) digits is 382205952, while the sum is 69.

The spelling of 2666480249688 in words is "two trillion, six hundred sixty-six billion, four hundred eighty million, two hundred forty-nine thousand, six hundred eighty-eight".