2666419625718 has 32 divisors (see below), whose sum is σ = 5935471355520. Its totient is φ = 887292380520.

The previous prime is 2666419625717. The next prime is 2666419625759. The reversal of 2666419625718 is 8175269146662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666419625717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42028048 + ... + 42091443.

It is an arithmetic number, because the mean of its divisors is an integer number (185483479860).

Almost surely, 2^{2666419625718} is an apocalyptic number.

2666419625718 is an abundant number, since it is smaller than the sum of its proper divisors (3269051729802).

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

2666419625718 is a wasteful number, since it uses less digits than its factorization.

2666419625718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84120089 (or 84120083 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 2666419625718 in words is "two trillion, six hundred sixty-six billion, four hundred nineteen million, six hundred twenty-five thousand, seven hundred eighteen".