70566066782 has 4 divisors (see below), whose sum is σ = 105849100176. Its totient is φ = 35283033390.

The previous prime is 70566066773. The next prime is 70566066793. The reversal of 70566066782 is 28766066507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28766066507 = 48733 ⋅590279.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17641516694 + ... + 17641516697.

It is an arithmetic number, because the mean of its divisors is an integer number (26462275044).

Almost surely, 2^70566066782 is an apocalyptic number.

70566066782 is a deficient number, since it is larger than the sum of its proper divisors (35283033394).

70566066782 is a wasteful number, since it uses less digits than its factorization.

70566066782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35283033393.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 70566066782 in words is "seventy billion, five hundred sixty-six million, sixty-six thousand, seven hundred eighty-two".