659641374 has 128 divisors (see below), whose sum is σ = 1772789760. Its totient is φ = 177811200.

The previous prime is 659641363. The next prime is 659641379. The reversal of 659641374 is 473146956.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659641379) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 479752 + ... + 481124.

It is an arithmetic number, because the mean of its divisors is an integer number (13849920).

Almost surely, 2^659641374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659641374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (886394880).

659641374 is an abundant number, since it is smaller than the sum of its proper divisors (1113148386).

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

659641374 is a wasteful number, since it uses less digits than its factorization.

659641374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1457 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 659641374 is about 25683.4844598625. The cubic root of 659641374 is about 870.5010431359.

The spelling of 659641374 in words is "six hundred fifty-nine million, six hundred forty-one thousand, three hundred seventy-four".