66789485 has 16 divisors (see below), whose sum is σ = 91936512. Its totient is φ = 45628800.

The previous prime is 66789473. The next prime is 66789497. The reversal of 66789485 is 58498766.

It is an interprime number because it is at equal distance from previous prime (66789473) and next prime (66789497).

It is a de Polignac number, because none of the positive numbers 2^k-66789485 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6440 + ... + 13230.

It is an arithmetic number, because the mean of its divisors is an integer number (5746032).

Almost surely, 2^66789485 is an apocalyptic number.

It is an amenable number.

66789485 is a deficient number, since it is larger than the sum of its proper divisors (25147027).

66789485 is a wasteful number, since it uses less digits than its factorization.

66789485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its digits is 2903040, while the sum is 53.

The square root of 66789485 is about 8172.4834046941. The cubic root of 66789485 is about 405.7289822552.

The spelling of 66789485 in words is "sixty-six million, seven hundred eighty-nine thousand, four hundred eighty-five".