655220470536 has 144 divisors (see below), whose sum is σ = 1832131813200. Its totient is φ = 211495040064.

The previous prime is 655220470507. The next prime is 655220470543. The reversal of 655220470536 is 635074022556.

655220470536 is a `hidden beast` number, since 6 + 5 + 52 + 20 + 47 + 0 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 655220470491 and 655220470500.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16772835 + ... + 16811853.

Almost surely, 2^655220470536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655220470536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916065906600).

655220470536 is an abundant number, since it is smaller than the sum of its proper divisors (1176911342664).

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

655220470536 is a wasteful number, since it uses less digits than its factorization.

655220470536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39216 (or 39150 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 655220470536 in words is "six hundred fifty-five billion, two hundred twenty million, four hundred seventy thousand, five hundred thirty-six".