66834097736 has 64 divisors (see below), whose sum is σ = 145999843200. Its totient is φ = 28087008768.

The previous prime is 66834097727. The next prime is 66834097739. The reversal of 66834097736 is 63779043866.

It is not an unprimeable number, because it can be changed into a prime (66834097739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6384875 + ... + 6395333.

It is an arithmetic number, because the mean of its divisors is an integer number (2281247550).

Almost surely, 2^66834097736 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 66834097736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72999921600).

66834097736 is an abundant number, since it is smaller than the sum of its proper divisors (79165745464).

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

66834097736 is a wasteful number, since it uses less digits than its factorization.

66834097736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12678 (or 12674 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 59.

The spelling of 66834097736 in words is "sixty-six billion, eight hundred thirty-four million, ninety-seven thousand, seven hundred thirty-six".