1659768052 has 12 divisors (see below), whose sum is σ = 2983096900. Its totient is φ = 807454656.

The previous prime is 1659768043. The next prime is 1659768101. The reversal of 1659768052 is 2508679561.

It can be written as a sum of positive squares in 2 ways, for example, as 1567684836 + 92083216 = 39594^2 + 9596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1659767987 and 1659768005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5607177 + ... + 5607472.

Almost surely, 2^1659768052 is an apocalyptic number.

It is an amenable number.

1659768052 is a deficient number, since it is larger than the sum of its proper divisors (1323328848).

1659768052 is a wasteful number, since it uses less digits than its factorization.

1659768052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11214690 (or 11214688 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 1659768052 is about 40740.2510056087. The cubic root of 1659768052 is about 1183.9929968617.

The spelling of 1659768052 in words is "one billion, six hundred fifty-nine million, seven hundred sixty-eight thousand, fifty-two".