1166106006506 has 16 divisors (see below), whose sum is σ = 1999890666816. Its totient is φ = 499546767456.

The previous prime is 1166106006503. The next prime is 1166106006589. The reversal of 1166106006506 is 6056006016611.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166106006506.

It is not an unprimeable number, because it can be changed into a prime (1166106006503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17711771 + ... + 17777486.

It is an arithmetic number, because the mean of its divisors is an integer number (124993166676).

Almost surely, 2^{1166106006506} is an apocalyptic number.

1166106006506 is a deficient number, since it is larger than the sum of its proper divisors (833784660310).

1166106006506 is a wasteful number, since it uses less digits than its factorization.

1166106006506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35491613.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 1166106006506 in words is "one trillion, one hundred sixty-six billion, one hundred six million, six thousand, five hundred six".