661676162 has 16 divisors (see below), whose sum is σ = 1137272832. Its totient is φ = 282832800.

The previous prime is 661676137. The next prime is 661676189. The reversal of 661676162 is 261676166.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56339 + ... + 67062.

It is an arithmetic number, because the mean of its divisors is an integer number (71079552).

Almost surely, 2^661676162 is an apocalyptic number.

661676162 is a deficient number, since it is larger than the sum of its proper divisors (475596670).

661676162 is a wasteful number, since it uses less digits than its factorization.

661676162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123793.

The product of its digits is 108864, while the sum is 41.

The square root of 661676162 is about 25723.0667300771. The cubic root of 661676162 is about 871.3951991494.

The spelling of 661676162 in words is "six hundred sixty-one million, six hundred seventy-six thousand, one hundred sixty-two".