66044702676 has 96 divisors (see below), whose sum is σ = 161979632640. Its totient is φ = 20904339456.

The previous prime is 66044702663. The next prime is 66044702681. The reversal of 66044702676 is 67620744066.

66044702676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66044702676² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 32971891 + ... + 32973893.

It is an arithmetic number, because the mean of its divisors is an integer number (1687287840).

Almost surely, 2^66044702676 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 66044702676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80989816320).

66044702676 is an abundant number, since it is smaller than the sum of its proper divisors (95934929964).

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

66044702676 is a wasteful number, since it uses less digits than its factorization.

66044702676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 66044702676 in words is "sixty-six billion, forty-four million, seven hundred two thousand, six hundred seventy-six".