665016200670 has 32 divisors (see below), whose sum is σ = 1597543236000. Its totient is φ = 177170503040.

The previous prime is 665016200633. The next prime is 665016200687. The reversal of 665016200670 is 76002610566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10414545 + ... + 10478204.

It is an arithmetic number, because the mean of its divisors is an integer number (49923226125).

Almost surely, 2^665016200670 is an apocalyptic number.

665016200670 is an abundant number, since it is smaller than the sum of its proper divisors (932527035330).

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

665016200670 is a wasteful number, since it uses less digits than its factorization.

665016200670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20893820.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 665016200670 in words is "six hundred sixty-five billion, sixteen million, two hundred thousand, six hundred seventy".