916685091685 has 16 divisors (see below), whose sum is σ = 1214482248000. Its totient is φ = 658647773440.

The previous prime is 916685091683. The next prime is 916685091691. The reversal of 916685091685 is 586190586619.

It is not a de Polignac number, because 916685091685 - 2¹ = 916685091683 is a prime.

It is a super-2 number, since 2×916685091685² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916685091683) 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, 100399060 + ... + 100408189.

It is an arithmetic number, because the mean of its divisors is an integer number (75905140500).

Almost surely, 2^916685091685 is an apocalyptic number.

It is an amenable number.

916685091685 is a deficient number, since it is larger than the sum of its proper divisors (297797156315).

916685091685 is a wasteful number, since it uses less digits than its factorization.

916685091685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200807348.

The product of its (nonzero) digits is 27993600, while the sum is 64.

The spelling of 916685091685 in words is "nine hundred sixteen billion, six hundred eighty-five million, ninety-one thousand, six hundred eighty-five".