655311861312 has 28 divisors (see below), whose sum is σ = 1733845966896. Its totient is φ = 218437287040.

The previous prime is 655311861293. The next prime is 655311861313. The reversal of 655311861312 is 213168113556.

It is a super-2 number, since 2×655311861312² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (655311861313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1706541114 + ... + 1706541497.

Almost surely, 2^655311861312 is an apocalyptic number.

It is an amenable number.

655311861312 is an abundant number, since it is smaller than the sum of its proper divisors (1078534105584).

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

655311861312 is a wasteful number, since it uses less digits than its factorization.

655311861312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413082626 (or 3413082616 counting only the distinct ones).

The product of its digits is 129600, while the sum is 42.

Adding to 655311861312 its reverse (213168113556), we get a palindrome (868479974868).

The spelling of 655311861312 in words is "six hundred fifty-five billion, three hundred eleven million, eight hundred sixty-one thousand, three hundred twelve".