659887916356704 has 384 divisors, whose sum is σ = 2042223784925184. Its totient is φ = 182699919360000.

The previous prime is 659887916356661. The next prime is 659887916356769. The reversal of 659887916356704 is 407653619788956.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 659691174 + ... + 660690714.

It is an arithmetic number, because the mean of its divisors is an integer number (5318291106576).

Almost surely, 2^{659887916356704} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659887916356704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1021111892462592).

659887916356704 is an abundant number, since it is smaller than the sum of its proper divisors (1382335868568480).

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

659887916356704 is a wasteful number, since it uses less digits than its factorization.

659887916356704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999870 (or 999862 counting only the distinct ones).

The product of its (nonzero) digits is 16460236800, while the sum is 84.

The spelling of 659887916356704 in words is "six hundred fifty-nine trillion, eight hundred eighty-seven billion, nine hundred sixteen million, three hundred fifty-six thousand, seven hundred four".