2666420452 has 24 divisors (see below), whose sum is σ = 4879195776. Its totient is φ = 1272604608.

The previous prime is 2666420441. The next prime is 2666420473. The reversal of 2666420452 is 2540246662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15048 + ... + 74560.

It is an arithmetic number, because the mean of its divisors is an integer number (203299824).

Almost surely, 2^2666420452 is an apocalyptic number.

It is an amenable number.

2666420452 is a deficient number, since it is larger than the sum of its proper divisors (2212775324).

2666420452 is a wasteful number, since it uses less digits than its factorization.

2666420452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60027 (or 60025 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2666420452 is about 51637.3939311426. The cubic root of 2666420452 is about 1386.6798684589.

The spelling of 2666420452 in words is "two billion, six hundred sixty-six million, four hundred twenty thousand, four hundred fifty-two".