1106665501 has 4 divisors (see below), whose sum is σ = 1132401952. Its totient is φ = 1080929052.

The previous prime is 1106665489. The next prime is 1106665519. The reversal of 1106665501 is 1055666011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1055666011 = 19 ⋅55561369.

It is a cyclic number.

It is not a de Polignac number, because 1106665501 - 2¹⁹ = 1106141213 is a prime.

It is a super-2 number, since 2×1106665501² = 2449417062207162002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106665591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12868161 + ... + 12868246.

It is an arithmetic number, because the mean of its divisors is an integer number (283100488).

Almost surely, 2^1106665501 is an apocalyptic number.

It is an amenable number.

1106665501 is a deficient number, since it is larger than the sum of its proper divisors (25736451).

1106665501 is an equidigital number, since it uses as much as digits as its factorization.

1106665501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25736450.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1106665501 is about 33266.5823462525. The cubic root of 1106665501 is about 1034.3609678317.

It can be divided in two parts, 11066 and 65501, that added together give a palindrome (76567).

The spelling of 1106665501 in words is "one billion, one hundred six million, six hundred sixty-five thousand, five hundred one".