1166155908 has 12 divisors (see below), whose sum is σ = 2721030480. Its totient is φ = 388718632.

The previous prime is 1166155897. The next prime is 1166155909. The reversal of 1166155908 is 8095516611.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1166155908.

It is not an unprimeable number, because it can be changed into a prime (1166155909) 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, 48589818 + ... + 48589841.

It is an arithmetic number, because the mean of its divisors is an integer number (226752540).

Almost surely, 2^1166155908 is an apocalyptic number.

It is an amenable number.

1166155908 is an abundant number, since it is smaller than the sum of its proper divisors (1554874572).

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

1166155908 is a wasteful number, since it uses less digits than its factorization.

1166155908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97179666 (or 97179664 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 1166155908 is about 34149.0249934021. The cubic root of 1166155908 is about 1052.5729516897.

The spelling of 1166155908 in words is "one billion, one hundred sixty-six million, one hundred fifty-five thousand, nine hundred eight".