1171664260 has 48 divisors (see below), whose sum is σ = 2789236800. Its totient is φ = 409843584.

The previous prime is 1171664233. The next prime is 1171664297. The reversal of 1171664260 is 624661711.

It is a super-2 number, since 2×1171664260² = 2745594276322695200, which contains 22 as substring.

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, 113650 + ... + 123529.

It is an arithmetic number, because the mean of its divisors is an integer number (58109100).

Almost surely, 2^1171664260 is an apocalyptic number.

1171664260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171664260 is an abundant number, since it is smaller than the sum of its proper divisors (1617572540).

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

1171664260 is a wasteful number, since it uses less digits than its factorization.

1171664260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237220 (or 237218 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1171664260 is about 34229.5816509638. The cubic root of 1171664260 is about 1054.2276296163.

The spelling of 1171664260 in words is "one billion, one hundred seventy-one million, six hundred sixty-four thousand, two hundred sixty".