200715171668 has 24 divisors (see below), whose sum is σ = 405723717504. Its totient is φ = 85867452800.

The previous prime is 200715171571. The next prime is 200715171689. The reversal of 200715171668 is 866171517002.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134167148 + ... + 134168643.

It is an arithmetic number, because the mean of its divisors is an integer number (16905154896).

Almost surely, 2^200715171668 is an apocalyptic number.

It is an amenable number.

200715171668 is an abundant number, since it is smaller than the sum of its proper divisors (205008545836).

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

200715171668 is a wasteful number, since it uses less digits than its factorization.

200715171668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268335823 (or 268335821 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 44.

The spelling of 200715171668 in words is "two hundred billion, seven hundred fifteen million, one hundred seventy-one thousand, six hundred sixty-eight".