255476542164 has 72 divisors (see below), whose sum is σ = 633388764288. Its totient is φ = 80130677760.

The previous prime is 255476542141. The next prime is 255476542171. The reversal of 255476542164 is 461245674552.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26216677 + ... + 26226419.

Almost surely, 2^255476542164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255476542164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316694382144).

255476542164 is an abundant number, since it is smaller than the sum of its proper divisors (377912222124).

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

255476542164 is a wasteful number, since it uses less digits than its factorization.

255476542164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17345 (or 17326 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 51.

The spelling of 255476542164 in words is "two hundred fifty-five billion, four hundred seventy-six million, five hundred forty-two thousand, one hundred sixty-four".