255021102045102 has 8 divisors (see below), whose sum is σ = 510042204090216. Its totient is φ = 85007034015032.

The previous prime is 255021102045079. The next prime is 255021102045137. The reversal of 255021102045102 is 201540201120552.

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

255021102045102 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 255021102045102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21251758503753 + ... + 21251758503764.

It is an arithmetic number, because the mean of its divisors is an integer number (63755275511277).

Almost surely, 2^{255021102045102} is an apocalyptic number.

255021102045102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255021102045102 is a wasteful number, since it uses less digits than its factorization.

255021102045102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42503517007522.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 255021102045102 its reverse (201540201120552), we get a palindrome (456561303165654).

The spelling of 255021102045102 in words is "two hundred fifty-five trillion, twenty-one billion, one hundred two million, forty-five thousand, one hundred two".