655216610720 has 96 divisors (see below), whose sum is σ = 1769454263808. Its totient is φ = 224598786048.

The previous prime is 655216610717. The next prime is 655216610723. The reversal of 655216610720 is 27016612556.

It is an interprime number because it is at equal distance from previous prime (655216610717) and next prime (655216610723).

It is not an unprimeable number, because it can be changed into a prime (655216610723) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5533577 + ... + 5650743.

It is an arithmetic number, because the mean of its divisors is an integer number (18431815248).

Almost surely, 2^655216610720 is an apocalyptic number.

It is an amenable number.

655216610720 is an abundant number, since it is smaller than the sum of its proper divisors (1114237653088).

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

655216610720 is a wasteful number, since it uses less digits than its factorization.

655216610720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122182 (or 122174 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 655216610720 in words is "six hundred fifty-five billion, two hundred sixteen million, six hundred ten thousand, seven hundred twenty".