1659853452 has 54 divisors (see below), whose sum is σ = 4094175708. Its totient is φ = 523317456.

The previous prime is 1659853451. The next prime is 1659853469. The reversal of 1659853452 is 2543589561.

It is a super-2 number, since 2×1659853452² = 5510226964232632608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1659853451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2681199 + ... + 2681817.

Almost surely, 2^1659853452 is an apocalyptic number.

1659853452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1659853452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047087854).

1659853452 is an abundant number, since it is smaller than the sum of its proper divisors (2434322256).

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

1659853452 is an equidigital number, since it uses as much as digits as its factorization.

1659853452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 643 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 48.

The square root of 1659853452 is about 40741.2990956351. The cubic root of 1659853452 is about 1184.0133031665.

Multiplying 1659853452 by its sum of digits (48), we get a square (79672965696 = 282264²).

The spelling of 1659853452 in words is "one billion, six hundred fifty-nine million, eight hundred fifty-three thousand, four hundred fifty-two".