255430404345402 has 160 divisors (see below), whose sum is σ = 678365664419520. Its totient is φ = 70816770823680.

The previous prime is 255430404345323. The next prime is 255430404345461. The reversal of 255430404345402 is 204543404034552.

255430404345402 is a `hidden beast` number, since 2 + 5 + 5 + 4 + 30 + 40 + 4 + 34 + 540 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 46170252 + ... + 51405767.

It is an arithmetic number, because the mean of its divisors is an integer number (4239785402622).

Almost surely, 2^{255430404345402} is an apocalyptic number.

255430404345402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

255430404345402 is an abundant number, since it is smaller than the sum of its proper divisors (422935260074118).

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

255430404345402 is a wasteful number, since it uses less digits than its factorization.

255430404345402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97576170 (or 97576161 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

Adding to 255430404345402 its reverse (204543404034552), we get a palindrome (459973808379954).

The spelling of 255430404345402 in words is "two hundred fifty-five trillion, four hundred thirty billion, four hundred four million, three hundred forty-five thousand, four hundred two".