655361620775 has 48 divisors (see below), whose sum is σ = 901937459808. Its totient is φ = 470217216000.

The previous prime is 655361620699. The next prime is 655361620847. The reversal of 655361620775 is 577026163556.

655361620775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-655361620775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 311945 + ... + 1186605.

It is an arithmetic number, because the mean of its divisors is an integer number (18790363746).

Almost surely, 2^655361620775 is an apocalyptic number.

655361620775 is a deficient number, since it is larger than the sum of its proper divisors (246575839033).

655361620775 is a wasteful number, since it uses less digits than its factorization.

655361620775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874772 (or 874767 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 655361620775 in words is "six hundred fifty-five billion, three hundred sixty-one million, six hundred twenty thousand, seven hundred seventy-five".