1161665060 has 24 divisors (see below), whose sum is σ = 2472917496. Its totient is φ = 458300160.

The previous prime is 1161665051. The next prime is 1161665083. The reversal of 1161665060 is 605661611.

It can be written as a sum of positive squares in 4 ways, for example, as 763876 + 1160901184 = 874^2 + 34072^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396371 + ... + 399290.

It is an arithmetic number, because the mean of its divisors is an integer number (103038229).

Almost surely, 2^1161665060 is an apocalyptic number.

1161665060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161665060 is an abundant number, since it is smaller than the sum of its proper divisors (1311252436).

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

1161665060 is a wasteful number, since it uses less digits than its factorization.

1161665060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795743 (or 795741 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1161665060 is about 34083.2078889297. The cubic root of 1161665060 is about 1051.2200662780.

The spelling of 1161665060 in words is "one billion, one hundred sixty-one million, six hundred sixty-five thousand, sixty".