70666043616 has 144 divisors (see below), whose sum is σ = 229833676800. Its totient is φ = 20175439104.

The previous prime is 70666043587. The next prime is 70666043641. The reversal of 70666043616 is 61634066607.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2888845 + ... + 2913203.

It is an arithmetic number, because the mean of its divisors is an integer number (1596067200).

Almost surely, 2^70666043616 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 70666043616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114916838400).

70666043616 is an abundant number, since it is smaller than the sum of its proper divisors (159167633184).

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

70666043616 is a wasteful number, since it uses less digits than its factorization.

70666043616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25821 (or 25810 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 70666043616 in words is "seventy billion, six hundred sixty-six million, forty-three thousand, six hundred sixteen".