658673376856 has 64 divisors (see below), whose sum is σ = 1394165779200. Its totient is φ = 288985603200.

The previous prime is 658673376821. The next prime is 658673376859.

658673376856 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (658673376859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8800311 + ... + 8874841.

It is an arithmetic number, because the mean of its divisors is an integer number (21783840300).

Almost surely, 2^658673376856 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 658673376856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697082889600).

658673376856 is an abundant number, since it is smaller than the sum of its proper divisors (735492402344).

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

658673376856 is a wasteful number, since it uses less digits than its factorization.

658673376856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78040 (or 78036 counting only the distinct ones).

The product of its digits is 914457600, while the sum is 70.

The spelling of 658673376856 in words is "six hundred fifty-eight billion, six hundred seventy-three million, three hundred seventy-six thousand, eight hundred fifty-six".