66673156104 has 224 divisors, whose sum is σ = 193422176640. Its totient is φ = 21520080000.

The previous prime is 66673156093. The next prime is 66673156117. The reversal of 66673156104 is 40165137666.

It is a self number, because there is not a number n which added to its sum of digits gives 66673156104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 54161169 + ... + 54162399.

It is an arithmetic number, because the mean of its divisors is an integer number (863491860).

Almost surely, 2^66673156104 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 66673156104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96711088320).

66673156104 is an abundant number, since it is smaller than the sum of its proper divisors (126749020536).

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

66673156104 is a wasteful number, since it uses less digits than its factorization.

66673156104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 66673156104 in words is "sixty-six billion, six hundred seventy-three million, one hundred fifty-six thousand, one hundred four".