1106155312666 has 4 divisors (see below), whose sum is σ = 1659232969002. Its totient is φ = 553077656332.

The previous prime is 1106155312643. The next prime is 1106155312667. The reversal of 1106155312666 is 6662135516011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 697009586641 + 409145726025 = 834871^2 + 639645^2 .

It is not an unprimeable number, because it can be changed into a prime (1106155312667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276538828165 + ... + 276538828168.

Almost surely, 2^{1106155312666} is an apocalyptic number.

1106155312666 is a deficient number, since it is larger than the sum of its proper divisors (553077656336).

1106155312666 is an equidigital number, since it uses as much as digits as its factorization.

1106155312666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553077656335.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1106155312666 in words is "one trillion, one hundred six billion, one hundred fifty-five million, three hundred twelve thousand, six hundred sixty-six".