106663686 has 16 divisors (see below), whose sum is σ = 213440304. Its totient is φ = 35535744.

The previous prime is 106663657. The next prime is 106663691. The reversal of 106663686 is 686366601.

It is a super-2 number, since 2×106663686² = 22754283822213192, which contains 22 as substring.

It is a congruent number.

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, 12306 + ... + 19098.

It is an arithmetic number, because the mean of its divisors is an integer number (13340019).

Almost surely, 2^106663686 is an apocalyptic number.

106663686 is an abundant number, since it is smaller than the sum of its proper divisors (106776618).

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

106663686 is a wasteful number, since it uses less digits than its factorization.

106663686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9415.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 106663686 is about 10327.8112879738. The cubic root of 106663686 is about 474.2480230936.

The spelling of 106663686 in words is "one hundred six million, six hundred sixty-three thousand, six hundred eighty-six".