106665503 has 12 divisors (see below), whose sum is σ = 124734240. Its totient is φ = 90945792.

The previous prime is 106665491. The next prime is 106665511. The reversal of 106665503 is 305566601.

It is not a de Polignac number, because 106665503 - 2¹⁴ = 106649119 is a prime.

It is a super-2 number, since 2×106665503² = 22755059060486018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106665503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106665593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3818 + ... + 15096.

It is an arithmetic number, because the mean of its divisors is an integer number (10394520).

Almost surely, 2^106665503 is an apocalyptic number.

106665503 is a deficient number, since it is larger than the sum of its proper divisors (18068737).

106665503 is a wasteful number, since it uses less digits than its factorization.

106665503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486 (or 11479 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 106665503 is about 10327.8992539625. The cubic root of 106665503 is about 474.2507159932.

The spelling of 106665503 in words is "one hundred six million, six hundred sixty-five thousand, five hundred three".