655216070120 has 16 divisors (see below), whose sum is σ = 1474236157860. Its totient is φ = 262086428032.

The previous prime is 655216070051. The next prime is 655216070189. The reversal of 655216070120 is 21070612556.

It is an interprime number because it is at equal distance from previous prime (655216070051) and next prime (655216070189).

It can be written as a sum of positive squares in 2 ways, for example, as 653791913476 + 1424156644 = 808574^2 + 37738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8190200837 + ... + 8190200916.

Almost surely, 2^655216070120 is an apocalyptic number.

It is an amenable number.

655216070120 is an abundant number, since it is smaller than the sum of its proper divisors (819020087740).

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

655216070120 is a wasteful number, since it uses less digits than its factorization.

655216070120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16380401764 (or 16380401760 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 655216070120 its reverse (21070612556), we get a palindrome (676286682676).

The spelling of 655216070120 in words is "six hundred fifty-five billion, two hundred sixteen million, seventy thousand, one hundred twenty".