166808584386 has 16 divisors (see below), whose sum is σ = 370685743200. Its totient is φ = 55602861444.

The previous prime is 166808584331. The next prime is 166808584417. The reversal of 166808584386 is 683485808661.

166808584386 is a `hidden beast` number, since 16 + 6 + 8 + 0 + 8 + 584 + 38 + 6 = 666.

It is a super-2 number, since 2×166808584386² (a number of 23 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, 1544523876 + ... + 1544523983.

It is an arithmetic number, because the mean of its divisors is an integer number (23167858950).

Almost surely, 2^166808584386 is an apocalyptic number.

166808584386 is an abundant number, since it is smaller than the sum of its proper divisors (203877158814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166808584386 is a wasteful number, since it uses less digits than its factorization.

166808584386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089047870 (or 3089047864 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 63.

The spelling of 166808584386 in words is "one hundred sixty-six billion, eight hundred eight million, five hundred eighty-four thousand, three hundred eighty-six".