83954705664 has 36 divisors (see below), whose sum is σ = 223441953056. Its totient is φ = 27984901632.

The previous prime is 83954705603. The next prime is 83954705689. The reversal of 83954705664 is 46650745938.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54657244 + ... + 54658779.

Almost surely, 2^83954705664 is an apocalyptic number.

It is an amenable number.

83954705664 is an abundant number, since it is smaller than the sum of its proper divisors (139487247392).

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

83954705664 is a wasteful number, since it uses less digits than its factorization.

83954705664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109316042 (or 109316028 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 83954705664 in words is "eighty-three billion, nine hundred fifty-four million, seven hundred five thousand, six hundred sixty-four".