1659556552 has 16 divisors (see below), whose sum is σ = 3218967900. Its totient is φ = 801165120.

The previous prime is 1659556519. The next prime is 1659556571. The reversal of 1659556552 is 2556559561.

It can be written as a sum of positive squares in 2 ways, for example, as 1608491236 + 51065316 = 40106^2 + 7146^2 .

It is a super-2 number, since 2×1659556552² = 5508255898572257408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1659556496 and 1659556505.

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, 3576399 + ... + 3576862.

Almost surely, 2^1659556552 is an apocalyptic number.

It is an amenable number.

1659556552 is a deficient number, since it is larger than the sum of its proper divisors (1559411348).

1659556552 is a wasteful number, since it uses less digits than its factorization.

1659556552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7153296 (or 7153292 counting only the distinct ones).

The product of its digits is 2025000, while the sum is 49.

The square root of 1659556552 is about 40737.6552098915. The cubic root of 1659556552 is about 1183.9427036584.

The spelling of 1659556552 in words is "one billion, six hundred fifty-nine million, five hundred fifty-six thousand, five hundred fifty-two".