8505605552690 has 16 divisors (see below), whose sum is σ = 15382649666880. Its totient is φ = 3386117849520.

The previous prime is 8505605552627. The next prime is 8505605552701. The reversal of 8505605552690 is 962555065058.

It is a super-2 number, since 2×8505605552690² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2015544230 + ... + 2015548449.

It is an arithmetic number, because the mean of its divisors is an integer number (961415604180).

Almost surely, 2^{8505605552690} is an apocalyptic number.

8505605552690 is a deficient number, since it is larger than the sum of its proper divisors (6877044114190).

8505605552690 is a wasteful number, since it uses less digits than its factorization.

8505605552690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031092897.

The product of its (nonzero) digits is 16200000, while the sum is 56.

The spelling of 8505605552690 in words is "eight trillion, five hundred five billion, six hundred five million, five hundred fifty-two thousand, six hundred ninety".