66020883084 has 96 divisors (see below), whose sum is σ = 184632987840. Its totient is φ = 20280927744.

The previous prime is 66020883077. The next prime is 66020883091. The reversal of 66020883084 is 48038802066.

It is a happy number.

66020883084 is a `hidden beast` number, since 6 + 602 + 0 + 8 + 8 + 30 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (66020883077) and next prime (66020883091).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 828162 + ... + 904374.

It is an arithmetic number, because the mean of its divisors is an integer number (1923260290).

Almost surely, 2^66020883084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66020883084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92316493920).

66020883084 is an abundant number, since it is smaller than the sum of its proper divisors (118612104756).

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

66020883084 is a wasteful number, since it uses less digits than its factorization.

66020883084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76856 (or 76848 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 66020883084 in words is "sixty-six billion, twenty million, eight hundred eighty-three thousand, eighty-four".