85716732664 has 32 divisors (see below), whose sum is σ = 162501786720. Its totient is φ = 42384064896.

The previous prime is 85716732653. The next prime is 85716732667. The reversal of 85716732664 is 46623761758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85716732667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533034 + ... + 674950.

It is an arithmetic number, because the mean of its divisors is an integer number (5078180835).

Almost surely, 2^85716732664 is an apocalyptic number.

It is an amenable number.

85716732664 is a deficient number, since it is larger than the sum of its proper divisors (76785054056).

85716732664 is a wasteful number, since it uses less digits than its factorization.

85716732664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142759 (or 142755 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 85716732664 in words is "eighty-five billion, seven hundred sixteen million, seven hundred thirty-two thousand, six hundred sixty-four".