66001006160 has 80 divisors (see below), whose sum is σ = 157347417216. Its totient is φ = 25732836864.

The previous prime is 66001006157. The next prime is 66001006189. The reversal of 66001006160 is 6160010066.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×66001006160² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655582 + ... + 1694978.

Almost surely, 2^66001006160 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 66001006160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78673708608).

66001006160 is an abundant number, since it is smaller than the sum of its proper divisors (91346411056).

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

66001006160 is a wasteful number, since it uses less digits than its factorization.

66001006160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39940 (or 39934 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 66001006160 in words is "sixty-six billion, one million, six thousand, one hundred sixty".