655212605055 has 8 divisors (see below), whose sum is σ = 1048340168112. Its totient is φ = 349446722688.

The previous prime is 655212605051. The next prime is 655212605077. The reversal of 655212605055 is 550506212556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655212605055 - 2² = 655212605051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655212604998 and 655212605016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655212605051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21840420154 + ... + 21840420183.

It is an arithmetic number, because the mean of its divisors is an integer number (131042521014).

Almost surely, 2^655212605055 is an apocalyptic number.

655212605055 is a deficient number, since it is larger than the sum of its proper divisors (393127563057).

655212605055 is a wasteful number, since it uses less digits than its factorization.

655212605055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43680840345.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 655212605055 in words is "six hundred fifty-five billion, two hundred twelve million, six hundred five thousand, fifty-five".