709855223616 has 1568 divisors, whose sum is σ = 2809303658496. Its totient is φ = 173877580800.

The previous prime is 709855223587. The next prime is 709855223689. The reversal of 709855223616 is 616322558907.

709855223616 is a `hidden beast` number, since 7 + 0 + 9 + 8 + 552 + 23 + 61 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 9997960861 + ... + 9997960931.

Almost surely, 2^709855223616 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 709855223616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404651829248).

709855223616 is an abundant number, since it is smaller than the sum of its proper divisors (2099448434880).

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

709855223616 is an equidigital number, since it uses as much as digits as its factorization.

709855223616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

It can be divided in two parts, 70985 and 5223616, that added together give a square (5294601 = 2301²).

The spelling of 709855223616 in words is "seven hundred nine billion, eight hundred fifty-five million, two hundred twenty-three thousand, six hundred sixteen".