661162 has 16 divisors (see below), whose sum is σ = 1059840. Its totient is φ = 308448.

The previous prime is 661139. The next prime is 661183. The reversal of 661162 is 261166.

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, 4758 + ... + 4894.

It is an arithmetic number, because the mean of its divisors is an integer number (66240).

2⁶⁶¹¹⁶² is an apocalyptic number.

661162 is a deficient number, since it is larger than the sum of its proper divisors (398678).

661162 is a wasteful number, since it uses less digits than its factorization.

661162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

The product of its digits is 432, while the sum is 22.

The square root of 661162 is about 813.1186875235. The cubic root of 661162 is about 87.1169431911.

The spelling of 661162 in words is "six hundred sixty-one thousand, one hundred sixty-two".