11156151666 has 32 divisors (see below), whose sum is σ = 24345531648. Its totient is φ = 3379980240.

The previous prime is 11156151623. The next prime is 11156151707. The reversal of 11156151666 is 66615165111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393045 + ... + 420471.

It is an arithmetic number, because the mean of its divisors is an integer number (760797864).

Almost surely, 2^11156151666 is an apocalyptic number.

11156151666 is an abundant number, since it is smaller than the sum of its proper divisors (13189379982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11156151666 is a wasteful number, since it uses less digits than its factorization.

11156151666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33606.

The product of its digits is 32400, while the sum is 39.

The spelling of 11156151666 in words is "eleven billion, one hundred fifty-six million, one hundred fifty-one thousand, six hundred sixty-six".