655501650505 has 8 divisors (see below), whose sum is σ = 847109825352. Its totient is φ = 484062757248.

The previous prime is 655501650499. The next prime is 655501650547. The reversal of 655501650505 is 505056105556.

655501650505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11394281536 + 644107368969 = 106744^2 + 802563^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 655501650505 - 2¹¹ = 655501648457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5042320324 + ... + 5042320453.

It is an arithmetic number, because the mean of its divisors is an integer number (105888728169).

Almost surely, 2^655501650505 is an apocalyptic number.

655501650505 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

655501650505 is a deficient number, since it is larger than the sum of its proper divisors (191608174847).

655501650505 is a wasteful number, since it uses less digits than its factorization.

655501650505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084640795.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 655501650505 in words is "six hundred fifty-five billion, five hundred one million, six hundred fifty thousand, five hundred five".