2666525390004 has 48 divisors (see below), whose sum is σ = 7111098062208. Its totient is φ = 761825430528.

The previous prime is 2666525389981. The next prime is 2666525390051. The reversal of 2666525390004 is 4000935256662.

2666525390004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2666525390004² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860704 + ... + 2464520.

It is an arithmetic number, because the mean of its divisors is an integer number (148147876296).

Almost surely, 2^{2666525390004} is an apocalyptic number.

It is an amenable number.

2666525390004 is an abundant number, since it is smaller than the sum of its proper divisors (4444572672204).

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

2666525390004 is a wasteful number, since it uses less digits than its factorization.

2666525390004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623624 (or 1623622 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 2666525390004 in words is "two trillion, six hundred sixty-six billion, five hundred twenty-five million, three hundred ninety thousand, four".