659142639376 has 75 divisors (see below), whose sum is σ = 1384662133113. Its totient is φ = 303966374400.

The previous prime is 659142639349. The next prime is 659142639433. The reversal of 659142639376 is 673936241956.

It is a happy number.

The square root of 659142639376 is 811876.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 359189256976 + 299953382400 = 599324^2 + 547680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 548827576 + ... + 548828776.

Almost surely, 2^659142639376 is an apocalyptic number.

659142639376 is the 811876-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659142639376

659142639376 is an abundant number, since it is smaller than the sum of its proper divisors (725519493737).

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

659142639376 is an frugal number, since it uses more digits than its factorization.

659142639376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 1216 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 61.

The spelling of 659142639376 in words is "six hundred fifty-nine billion, one hundred forty-two million, six hundred thirty-nine thousand, three hundred seventy-six".