1606625066 has 16 divisors (see below), whose sum is σ = 2545452000. Its totient is φ = 758430288.

The previous prime is 1606625021. The next prime is 1606625081. The reversal of 1606625066 is 6605266061.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61016 + ... + 83283.

It is an arithmetic number, because the mean of its divisors is an integer number (159090750).

Almost surely, 2^1606625066 is an apocalyptic number.

1606625066 is a deficient number, since it is larger than the sum of its proper divisors (938826934).

1606625066 is a wasteful number, since it uses less digits than its factorization.

1606625066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144613.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1606625066 is about 40082.7277764376. The cubic root of 1606625066 is about 1171.2191898215.

The spelling of 1606625066 in words is "one billion, six hundred six million, six hundred twenty-five thousand, sixty-six".