1659512664 has 64 divisors (see below), whose sum is σ = 4880930400. Its totient is φ = 520630272.

The previous prime is 1659512663. The next prime is 1659512713. The reversal of 1659512664 is 4662159561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659512663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222297 + ... + 229640.

Almost surely, 2^1659512664 is an apocalyptic number.

It is an amenable number.

1659512664 is an abundant number, since it is smaller than the sum of its proper divisors (3221417736).

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

1659512664 is a wasteful number, since it uses less digits than its factorization.

1659512664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451969 (or 451959 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 1659512664 is about 40737.1165400793. The cubic root of 1659512664 is about 1183.9322668673.

The spelling of 1659512664 in words is "one billion, six hundred fifty-nine million, five hundred twelve thousand, six hundred sixty-four".