66485202160 has 80 divisors (see below), whose sum is σ = 167215797504. Its totient is φ = 24438214656.

The previous prime is 66485202031. The next prime is 66485202227. The reversal of 66485202160 is 6120258466.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88584 + ... + 375256.

Almost surely, 2^66485202160 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 66485202160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83607898752).

66485202160 is an abundant number, since it is smaller than the sum of its proper divisors (100730595344).

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

66485202160 is a wasteful number, since it uses less digits than its factorization.

66485202160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286922 (or 286916 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 66485202160 in words is "sixty-six billion, four hundred eighty-five million, two hundred two thousand, one hundred sixty".