255768553770 has 128 divisors (see below), whose sum is σ = 655603200000. Its totient is φ = 63673309440.

The previous prime is 255768553763. The next prime is 255768553783. The reversal of 255768553770 is 77355867552.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24355981 + ... + 24366479.

It is an arithmetic number, because the mean of its divisors is an integer number (5121900000).

Almost surely, 2^255768553770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255768553770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327801600000).

255768553770 is an abundant number, since it is smaller than the sum of its proper divisors (399834646230).

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

255768553770 is a wasteful number, since it uses less digits than its factorization.

255768553770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11148.

The product of its (nonzero) digits is 61740000, while the sum is 60.

The spelling of 255768553770 in words is "two hundred fifty-five billion, seven hundred sixty-eight million, five hundred fifty-three thousand, seven hundred seventy".