1170665172 has 72 divisors (see below), whose sum is σ = 3011613696. Its totient is φ = 383370624.

The previous prime is 1170665147. The next prime is 1170665179. The reversal of 1170665172 is 2715660711.

1170665172 is a `hidden beast` number, since 11 + 70 + 66 + 517 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170665179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488008 + ... + 490400.

It is an arithmetic number, because the mean of its divisors is an integer number (41827968).

Almost surely, 2^1170665172 is an apocalyptic number.

1170665172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1170665172 is an abundant number, since it is smaller than the sum of its proper divisors (1840948524).

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

1170665172 is a wasteful number, since it uses less digits than its factorization.

1170665172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637 (or 2632 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1170665172 is about 34214.9846120088. The cubic root of 1170665172 is about 1053.9278948065.

The spelling of 1170665172 in words is "one billion, one hundred seventy million, six hundred sixty-five thousand, one hundred seventy-two".