255816281402 has 8 divisors (see below), whose sum is σ = 418608460512. Its totient is φ = 116280127900.

The previous prime is 255816281363. The next prime is 255816281419. The reversal of 255816281402 is 204182618552.

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

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, 5814006374 + ... + 5814006417.

It is an arithmetic number, because the mean of its divisors is an integer number (52326057564).

Almost surely, 2^255816281402 is an apocalyptic number.

255816281402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

255816281402 is a deficient number, since it is larger than the sum of its proper divisors (162792179110).

255816281402 is a wasteful number, since it uses less digits than its factorization.

255816281402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628012804.

The product of its (nonzero) digits is 307200, while the sum is 44.

Adding to 255816281402 its reverse (204182618552), we get a palindrome (459998899954).

The spelling of 255816281402 in words is "two hundred fifty-five billion, eight hundred sixteen million, two hundred eighty-one thousand, four hundred two".