101665105 has 16 divisors (see below), whose sum is σ = 128692800. Its totient is φ = 76887360.

The previous prime is 101665099. The next prime is 101665121. The reversal of 101665105 is 501566101.

It is not a de Polignac number, because 101665105 - 2⁵ = 101665073 is a prime.

It is a super-2 number, since 2×101665105² = 20671587149322050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101665105.

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, 61986 + ... + 63604.

It is an arithmetic number, because the mean of its divisors is an integer number (8043300).

Almost surely, 2^101665105 is an apocalyptic number.

It is an amenable number.

101665105 is a deficient number, since it is larger than the sum of its proper divisors (27027695).

101665105 is a wasteful number, since it uses less digits than its factorization.

101665105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 101665105 is about 10082.9115338775. The cubic root of 101665105 is about 466.7209593862.

The spelling of 101665105 in words is "one hundred one million, six hundred sixty-five thousand, one hundred five".