85516705730 has 32 divisors (see below), whose sum is σ = 154287892800. Its totient is φ = 34127235520.

The previous prime is 85516705663. The next prime is 85516705733. The reversal of 85516705730 is 3750761558.

It is a super-2 number, since 2×85516705730² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85516705733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16768721 + ... + 16773819.

It is an arithmetic number, because the mean of its divisors is an integer number (4821496650).

Almost surely, 2^85516705730 is an apocalyptic number.

85516705730 is a deficient number, since it is larger than the sum of its proper divisors (68771187070).

85516705730 is a wasteful number, since it uses less digits than its factorization.

85516705730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674.

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 85516705730 in words is "eighty-five billion, five hundred sixteen million, seven hundred five thousand, seven hundred thirty".