1662153320 has 32 divisors (see below), whose sum is σ = 3781873800. Its totient is φ = 657389568.

The previous prime is 1662153313. The next prime is 1662153323. The reversal of 1662153320 is 233512661.

It can be written as a sum of positive squares in 4 ways, for example, as 1498773796 + 163379524 = 38714^2 + 12782^2 .

It is not an unprimeable number, because it can be changed into a prime (1662153323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229889 + ... + 237008.

Almost surely, 2^1662153320 is an apocalyptic number.

1662153320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1662153320 is an abundant number, since it is smaller than the sum of its proper divisors (2119720480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1662153320 is a wasteful number, since it uses less digits than its factorization.

1662153320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466997 (or 466993 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1662153320 is about 40769.5145911746. The cubic root of 1662153320 is about 1184.5599011383.

Adding to 1662153320 its reverse (233512661), we get a palindrome (1895665981).

The spelling of 1662153320 in words is "one billion, six hundred sixty-two million, one hundred fifty-three thousand, three hundred twenty".