66896009010 has 96 divisors (see below), whose sum is σ = 177356874240. Its totient is φ = 17490211200.

The previous prime is 66896008987. The next prime is 66896009051. The reversal of 66896009010 is 1090069866.

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 47 ways as a sum of consecutive naturals, for example, 1127671 + ... + 1185509.

It is an arithmetic number, because the mean of its divisors is an integer number (1847467440).

Almost surely, 2^66896009010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66896009010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88678437120).

66896009010 is an abundant number, since it is smaller than the sum of its proper divisors (110460865230).

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

66896009010 is a wasteful number, since it uses less digits than its factorization.

66896009010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58104 (or 58101 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 66896009010 in words is "sixty-six billion, eight hundred ninety-six million, nine thousand, ten".