2666260460040 has 64 divisors (see below), whose sum is σ = 8051753496960. Its totient is φ = 706294156800.

The previous prime is 2666260459991. The next prime is 2666260460161. The reversal of 2666260460040 is 400640626662.

It is a junction number, because it is equal to n+sod(n) for n = 2666260459974 and 2666260460001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73554189 + ... + 73590428.

It is an arithmetic number, because the mean of its divisors is an integer number (125808648390).

Almost surely, 2^{2666260460040} is an apocalyptic number.

2666260460040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666260460040 is an abundant number, since it is smaller than the sum of its proper divisors (5385493036920).

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

2666260460040 is a wasteful number, since it uses less digits than its factorization.

2666260460040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147144782 (or 147144778 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 2666260460040 in words is "two trillion, six hundred sixty-six billion, two hundred sixty million, four hundred sixty thousand, forty".