655361620774 has 16 divisors (see below), whose sum is σ = 1123586503200. Its totient is φ = 280841906304.

The previous prime is 655361620699. The next prime is 655361620847. The reversal of 655361620774 is 477026163556.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130789 + ... + 2418880.

It is an arithmetic number, because the mean of its divisors is an integer number (70224156450).

Almost surely, 2^655361620774 is an apocalyptic number.

655361620774 is a deficient number, since it is larger than the sum of its proper divisors (468224882426).

655361620774 is a wasteful number, since it uses less digits than its factorization.

655361620774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4559967.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 655361620774 in words is "six hundred fifty-five billion, three hundred sixty-one million, six hundred twenty thousand, seven hundred seventy-four".