659785409382 has 16 divisors (see below), whose sum is σ = 1439531802432. Its totient is φ = 199934972520.

The previous prime is 659785409363. The next prime is 659785409407. The reversal of 659785409382 is 283904587956.

659785409382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 9996748627 = 659785409382 / (6 + 5 + 9 + 7 + 8 + 5 + 4 + 0 + 9 + 3 + 8 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4998374248 + ... + 4998374379.

It is an arithmetic number, because the mean of its divisors is an integer number (89970737652).

Almost surely, 2^659785409382 is an apocalyptic number.

659785409382 is an abundant number, since it is smaller than the sum of its proper divisors (779746393050).

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

659785409382 is a wasteful number, since it uses less digits than its factorization.

659785409382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9996748643.

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 659785409382 in words is "six hundred fifty-nine billion, seven hundred eighty-five million, four hundred nine thousand, three hundred eighty-two".