1172666860 has 12 divisors (see below), whose sum is σ = 2462600448. Its totient is φ = 469066736.

The previous prime is 1172666843. The next prime is 1172666899. The reversal of 1172666860 is 686662711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29316652 + ... + 29316691.

It is an arithmetic number, because the mean of its divisors is an integer number (205216704).

Almost surely, 2^1172666860 is an apocalyptic number.

1172666860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172666860 is an abundant number, since it is smaller than the sum of its proper divisors (1289933588).

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

1172666860 is a wasteful number, since it uses less digits than its factorization.

1172666860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58633352 (or 58633350 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1172666860 is about 34244.2237464948. The cubic root of 1172666860 is about 1054.5282468141.

The spelling of 1172666860 in words is "one billion, one hundred seventy-two million, six hundred sixty-six thousand, eight hundred sixty".