655501650606 has 144 divisors (see below), whose sum is σ = 1637169850368. Its totient is φ = 187956223200.

The previous prime is 655501650581. The next prime is 655501650637. The reversal of 655501650606 is 606056105556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64825491 + ... + 64835601.

It is an arithmetic number, because the mean of its divisors is an integer number (11369235072).

Almost surely, 2^655501650606 is an apocalyptic number.

655501650606 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 655501650606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818584925184).

655501650606 is an abundant number, since it is smaller than the sum of its proper divisors (981668199762).

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

655501650606 is a wasteful number, since it uses less digits than its factorization.

655501650606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075 (or 11053 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 655501650606 in words is "six hundred fifty-five billion, five hundred one million, six hundred fifty thousand, six hundred six".