1659519480 has 64 divisors (see below), whose sum is σ = 4997583360. Its totient is φ = 440847488.

The previous prime is 1659519479. The next prime is 1659519487. The reversal of 1659519480 is 849159561.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659519487) 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, 5269 + ... + 57851.

It is an arithmetic number, because the mean of its divisors is an integer number (78087240).

Almost surely, 2^1659519480 is an apocalyptic number.

1659519480 is a gapful number since it is divisible by the number (10) 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 1659519480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2498791680).

1659519480 is an abundant number, since it is smaller than the sum of its proper divisors (3338063880).

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

1659519480 is a wasteful number, since it uses less digits than its factorization.

1659519480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52860 (or 52856 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 1659519480 is about 40737.2001983445. The cubic root of 1659519480 is about 1183.9338877591.

The spelling of 1659519480 in words is "one billion, six hundred fifty-nine million, five hundred nineteen thousand, four hundred eighty".