2666066426 has 16 divisors (see below), whose sum is σ = 4034637600. Its totient is φ = 1321219728.

The previous prime is 2666066357. The next prime is 2666066519. The reversal of 2666066426 is 6246606662.

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, 164336 + ... + 179828.

It is an arithmetic number, because the mean of its divisors is an integer number (252164850).

Almost surely, 2^2666066426 is an apocalyptic number.

2666066426 is a deficient number, since it is larger than the sum of its proper divisors (1368571174).

2666066426 is a wasteful number, since it uses less digits than its factorization.

2666066426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16253.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 2666066426 is about 51633.9658170859. The cubic root of 2666066426 is about 1386.6184949853.

The spelling of 2666066426 in words is "two billion, six hundred sixty-six million, sixty-six thousand, four hundred twenty-six".