1659161012 has 6 divisors (see below), whose sum is σ = 2903531778. Its totient is φ = 829580504.

The previous prime is 1659161003. The next prime is 1659161017. The reversal of 1659161012 is 2101619561.

It can be written as a sum of positive squares in only one way, i.e., 1120642576 + 538518436 = 33476^2 + 23206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1659161012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659161017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207395123 + ... + 207395130.

It is an arithmetic number, because the mean of its divisors is an integer number (483921963).

Almost surely, 2^1659161012 is an apocalyptic number.

It is an amenable number.

1659161012 is a deficient number, since it is larger than the sum of its proper divisors (1244370766).

1659161012 is a wasteful number, since it uses less digits than its factorization.

1659161012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414790257 (or 414790255 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1659161012 is about 40732.8001983659. The cubic root of 1659161012 is about 1183.8486355762.

The spelling of 1659161012 in words is "one billion, six hundred fifty-nine million, one hundred sixty-one thousand, twelve".