655616711708 has 72 divisors (see below), whose sum is σ = 1439820757872. Its totient is φ = 259460737536.

The previous prime is 655616711689. The next prime is 655616711731. The reversal of 655616711708 is 807117616556.

It is a super-3 number, since 3×655616711708³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 655616711708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1679666 + ... + 2032857.

It is an arithmetic number, because the mean of its divisors is an integer number (19997510526).

Almost surely, 2^655616711708 is an apocalyptic number.

655616711708 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

655616711708 is an abundant number, since it is smaller than the sum of its proper divisors (784204046164).

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

655616711708 is a wasteful number, since it uses less digits than its factorization.

655616711708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712611 (or 3712602 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 655616711708 in words is "six hundred fifty-five billion, six hundred sixteen million, seven hundred eleven thousand, seven hundred eight".