1180611660 has 48 divisors (see below), whose sum is σ = 3307298400. Its totient is φ = 314678784.

The previous prime is 1180611599. The next prime is 1180611673. The reversal of 1180611660 is 661160811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183376 + ... + 189704.

It is an arithmetic number, because the mean of its divisors is an integer number (68902050).

Almost surely, 2^1180611660 is an apocalyptic number.

1180611660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180611660 is an abundant number, since it is smaller than the sum of its proper divisors (2126686740).

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

1180611660 is a wasteful number, since it uses less digits than its factorization.

1180611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450 (or 9448 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1180611660 is about 34360.0299767040. The cubic root of 1180611660 is about 1056.9043597251.

The spelling of 1180611660 in words is "one billion, one hundred eighty million, six hundred eleven thousand, six hundred sixty".