106665533 has 6 divisors (see below), whose sum is σ = 115501914. Its totient is φ = 98460336.

The previous prime is 106665511. The next prime is 106665539. The reversal of 106665533 is 335566601.

It can be written as a sum of positive squares in 3 ways, for example, as 9406489 + 97259044 = 3067^2 + 9862^2 .

It is not a de Polignac number, because 106665533 - 2⁶ = 106665469 is a prime.

It is a super-2 number, since 2×106665533² = 22755071860348178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106665493 and 106665502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106665539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315410 + ... + 315747.

It is an arithmetic number, because the mean of its divisors is an integer number (19250319).

Almost surely, 2^106665533 is an apocalyptic number.

106665533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

106665533 is a deficient number, since it is larger than the sum of its proper divisors (8836381).

106665533 is an equidigital number, since it uses as much as digits as its factorization.

106665533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631183 (or 631170 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 106665533 is about 10327.9007063391. The cubic root of 106665533 is about 474.2507604546.

The spelling of 106665533 in words is "one hundred six million, six hundred sixty-five thousand, five hundred thirty-three".