255920078499 has 8 divisors (see below), whose sum is σ = 341229208320. Its totient is φ = 170612167176.

The previous prime is 255920078467. The next prime is 255920078501. The reversal of 255920078499 is 994870029552.

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

It is not a de Polignac number, because 255920078499 - 2⁵ = 255920078467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255920078419) 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, 458682 + ... + 849840.

It is an arithmetic number, because the mean of its divisors is an integer number (42653651040).

Almost surely, 2^255920078499 is an apocalyptic number.

255920078499 is a deficient number, since it is larger than the sum of its proper divisors (85309129821).

255920078499 is a wasteful number, since it uses less digits than its factorization.

255920078499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609249.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 255920078499 in words is "two hundred fifty-five billion, nine hundred twenty million, seventy-eight thousand, four hundred ninety-nine".