255618751064 has 16 divisors (see below), whose sum is σ = 481718080800. Its totient is φ = 127160596192.

The previous prime is 255618751051. The next prime is 255618751067. The reversal of 255618751064 is 460157816552.

It is a super-2 number, since 2×255618751064² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255618751067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81095744 + ... + 81098895.

It is an arithmetic number, because the mean of its divisors is an integer number (30107380050).

Almost surely, 2^255618751064 is an apocalyptic number.

It is an amenable number.

255618751064 is a deficient number, since it is larger than the sum of its proper divisors (226099329736).

255618751064 is a wasteful number, since it uses less digits than its factorization.

255618751064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194842 (or 162194838 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 255618751064 in words is "two hundred fifty-five billion, six hundred eighteen million, seven hundred fifty-one thousand, sixty-four".