85770566316 has 36 divisors (see below), whose sum is σ = 220899670992. Its totient is φ = 28050750624.

The previous prime is 85770566279. The next prime is 85770566339. The reversal of 85770566316 is 61366507758.

85770566316 is a `hidden beast` number, since 8 + 5 + 7 + 70 + 566 + 3 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22474656 + ... + 22478471.

It is an arithmetic number, because the mean of its divisors is an integer number (6136101972).

Almost surely, 2^85770566316 is an apocalyptic number.

It is an amenable number.

85770566316 is an abundant number, since it is smaller than the sum of its proper divisors (135129104676).

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

85770566316 is a wasteful number, since it uses less digits than its factorization.

85770566316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44953190 (or 44953185 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 85770566316 in words is "eighty-five billion, seven hundred seventy million, five hundred sixty-six thousand, three hundred sixteen".