8216168485 has 16 divisors (see below), whose sum is σ = 11317104000. Its totient is φ = 5609336256.

The previous prime is 8216168479. The next prime is 8216168509. The reversal of 8216168485 is 5848616128.

It is a cyclic number.

It is not a de Polignac number, because 8216168485 - 2¹⁷ = 8216037413 is a prime.

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, 504535 + ... + 520564.

It is an arithmetic number, because the mean of its divisors is an integer number (707319000).

Almost surely, 2^8216168485 is an apocalyptic number.

It is an amenable number.

8216168485 is a deficient number, since it is larger than the sum of its proper divisors (3100935515).

8216168485 is a wasteful number, since it uses less digits than its factorization.

8216168485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025340.

The product of its digits is 737280, while the sum is 49.

The square root of 8216168485 is about 90643.0829407297. The cubic root of 8216168485 is about 2017.8541802563.

The spelling of 8216168485 in words is "eight billion, two hundred sixteen million, one hundred sixty-eight thousand, four hundred eighty-five".