1066116155 has 32 divisors (see below), whose sum is σ = 1462152384. Its totient is φ = 739270656.

The previous prime is 1066116131. The next prime is 1066116199. The reversal of 1066116155 is 5516116601.

It is a cyclic number.

It is not a de Polignac number, because 1066116155 - 2⁶ = 1066116091 is a prime.

It is a super-2 number, since 2×1066116155² = 2273207311903968050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654452 + ... + 656078.

It is an arithmetic number, because the mean of its divisors is an integer number (45692262).

Almost surely, 2^1066116155 is an apocalyptic number.

1066116155 is a deficient number, since it is larger than the sum of its proper divisors (396036229).

1066116155 is a wasteful number, since it uses less digits than its factorization.

1066116155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1066116155 is about 32651.4341951468. The cubic root of 1066116155 is about 1021.5701036586.

The spelling of 1066116155 in words is "one billion, sixty-six million, one hundred sixteen thousand, one hundred fifty-five".