1687166106 has 16 divisors (see below), whose sum is σ = 3375327648. Its totient is φ = 562222800.

The previous prime is 1687166101. The next prime is 1687166137. The reversal of 1687166106 is 6016617861.

It is not an unprimeable number, because it can be changed into a prime (1687166101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18460 + ... + 60951.

It is an arithmetic number, because the mean of its divisors is an integer number (210957978).

Almost surely, 2^1687166106 is an apocalyptic number.

1687166106 is an abundant number, since it is smaller than the sum of its proper divisors (1688161542).

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

1687166106 is a wasteful number, since it uses less digits than its factorization.

1687166106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82957.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1687166106 is about 41075.1275834902. The cubic root of 1687166106 is about 1190.4722617690.

The spelling of 1687166106 in words is "one billion, six hundred eighty-seven million, one hundred sixty-six thousand, one hundred six".