428225860066 has 16 divisors (see below), whose sum is σ = 649102341888. Its totient is φ = 211861792800.

The previous prime is 428225860039. The next prime is 428225860079. The reversal of 428225860066 is 660068522824.

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, 590755 + ... + 1097926.

It is an arithmetic number, because the mean of its divisors is an integer number (40568896368).

Almost surely, 2^428225860066 is an apocalyptic number.

428225860066 is a deficient number, since it is larger than the sum of its proper divisors (220876481822).

428225860066 is a wasteful number, since it uses less digits than its factorization.

428225860066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690017.

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 428225860066 in words is "four hundred twenty-eight billion, two hundred twenty-five million, eight hundred sixty thousand, sixty-six".