2666223501552 has 160 divisors (see below), whose sum is σ = 8283164288000. Its totient is φ = 816253625088.

The previous prime is 2666223501527. The next prime is 2666223501577. The reversal of 2666223501552 is 2551053226662.

It is an interprime number because it is at equal distance from previous prime (2666223501527) and next prime (2666223501577).

It is a junction number, because it is equal to n+sod(n) for n = 2666223501498 and 2666223501507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75268 + ... + 2310435.

It is an arithmetic number, because the mean of its divisors is an integer number (51769776800).

Almost surely, 2^{2666223501552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666223501552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4141582144000).

2666223501552 is an abundant number, since it is smaller than the sum of its proper divisors (5616940786448).

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

2666223501552 is a wasteful number, since it uses less digits than its factorization.

2666223501552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385932 (or 2385920 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 2666223501552 in words is "two trillion, six hundred sixty-six billion, two hundred twenty-three million, five hundred one thousand, five hundred fifty-two".