255814819620 has 24 divisors (see below), whose sum is σ = 716281495104. Its totient is φ = 68217285216.

The previous prime is 255814819619. The next prime is 255814819621. The reversal of 255814819620 is 26918418552.

It is an interprime number because it is at equal distance from previous prime (255814819619) and next prime (255814819621).

It is not an unprimeable number, because it can be changed into a prime (255814819621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131790104 + ... + 2131790223.

It is an arithmetic number, because the mean of its divisors is an integer number (29845062296).

Almost surely, 2^255814819620 is an apocalyptic number.

255814819620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255814819620 is an abundant number, since it is smaller than the sum of its proper divisors (460466675484).

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

255814819620 is a wasteful number, since it uses less digits than its factorization.

255814819620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263580339 (or 4263580337 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 255814819620 in words is "two hundred fifty-five billion, eight hundred fourteen million, eight hundred nineteen thousand, six hundred twenty".