1662659344 has 10 divisors (see below), whose sum is σ = 3221402510. Its totient is φ = 831329664.

The previous prime is 1662659329. The next prime is 1662659377. The reversal of 1662659344 is 4439562661.

It can be written as a sum of positive squares in only one way, i.e., 1619257600 + 43401744 = 40240^2 + 6588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1662659294 and 1662659303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51958089 + ... + 51958120.

It is an arithmetic number, because the mean of its divisors is an integer number (322140251).

Almost surely, 2^1662659344 is an apocalyptic number.

It is an amenable number.

1662659344 is a deficient number, since it is larger than the sum of its proper divisors (1558743166).

1662659344 is a wasteful number, since it uses less digits than its factorization.

1662659344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103916217 (or 103916211 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The square root of 1662659344 is about 40775.7200304299. The cubic root of 1662659344 is about 1184.6800976156.

The spelling of 1662659344 in words is "one billion, six hundred sixty-two million, six hundred fifty-nine thousand, three hundred forty-four".