83019705668 has 12 divisors (see below), whose sum is σ = 145304020092. Its totient is φ = 41504271360.

The previous prime is 83019705653. The next prime is 83019705677. The reversal of 83019705668 is 86650791038.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7632119044 + 75387586624 = 87362^2 + 274568^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361813 + ... + 1421468.

It is an arithmetic number, because the mean of its divisors is an integer number (12108668341).

Almost surely, 2^83019705668 is an apocalyptic number.

It is an amenable number.

83019705668 is a deficient number, since it is larger than the sum of its proper divisors (62284314424).

83019705668 is a wasteful number, since it uses less digits than its factorization.

83019705668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790742 (or 2790740 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 83019705668 in words is "eighty-three billion, nineteen million, seven hundred five thousand, six hundred sixty-eight".