69441000066 has 12 divisors (see below), whose sum is σ = 150455500182. Its totient is φ = 23147000016.

The previous prime is 69441000061. The next prime is 69441000067. The reversal of 69441000066 is 66000014496.

It can be written as a sum of positive squares in only one way, i.e., 36111020841 + 33329979225 = 190029^2 + 182565^2 .

It is not an unprimeable number, because it can be changed into a prime (69441000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1928916651 + ... + 1928916686.

Almost surely, 2^69441000066 is an apocalyptic number.

69441000066 is an abundant number, since it is smaller than the sum of its proper divisors (81014500116).

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

69441000066 is a wasteful number, since it uses less digits than its factorization.

69441000066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857833345 (or 3857833342 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 69441000066 in words is "sixty-nine billion, four hundred forty-one million, sixty-six", and thus it is an aban number.