1425886566 has 16 divisors (see below), whose sum is σ = 3071140464. Its totient is φ = 438734304.

The previous prime is 1425886499. The next prime is 1425886607. The reversal of 1425886566 is 6656885241.

It is a congruent number.

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, 9140221 + ... + 9140376.

It is an arithmetic number, because the mean of its divisors is an integer number (191946279).

Almost surely, 2^1425886566 is an apocalyptic number.

1425886566 is an abundant number, since it is smaller than the sum of its proper divisors (1645253898).

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

1425886566 is a wasteful number, since it uses less digits than its factorization.

1425886566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280615.

The product of its digits is 2764800, while the sum is 51.

The square root of 1425886566 is about 37760.9132039997. The cubic root of 1425886566 is about 1125.5418797899.

The spelling of 1425886566 in words is "one billion, four hundred twenty-five million, eight hundred eighty-six thousand, five hundred sixty-six".