1162611660 has 48 divisors (see below), whose sum is σ = 3720358656. Its totient is φ = 265739712.

The previous prime is 1162611649. The next prime is 1162611661. The reversal of 1162611660 is 661162611.

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

It is not an unprimeable number, because it can be changed into a prime (1162611661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383642 + ... + 1384481.

It is an arithmetic number, because the mean of its divisors is an integer number (77507472).

Almost surely, 2^1162611660 is an apocalyptic number.

1162611660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1162611660 is an abundant number, since it is smaller than the sum of its proper divisors (2557746996).

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

1162611660 is a wasteful number, since it uses less digits than its factorization.

1162611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768142 (or 2768140 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1162611660 is about 34097.0916648326. The cubic root of 1162611660 is about 1051.5055228422.

The spelling of 1162611660 in words is "one billion, one hundred sixty-two million, six hundred eleven thousand, six hundred sixty".