66076992000 has 320 divisors, whose sum is σ = 244105804800. Its totient is φ = 17620070400.

The previous prime is 66076991983. The next prime is 66076992017. The reversal of 66076992000 is 29967066.

It is an interprime number because it is at equal distance from previous prime (66076991983) and next prime (66076992017).

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 1708881 + ... + 1747119.

It is an arithmetic number, because the mean of its divisors is an integer number (762830640).

Almost surely, 2^66076992000 is an apocalyptic number.

66076992000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66076992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122052902400).

66076992000 is an abundant number, since it is smaller than the sum of its proper divisors (178028812800).

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

66076992000 is an equidigital number, since it uses as much as digits as its factorization.

66076992000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38281 (or 38249 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 66076992000 in words is "sixty-six billion, seventy-six million, nine hundred ninety-two thousand".