255049166678 has 4 divisors (see below), whose sum is σ = 382573750020. Its totient is φ = 127524583338.

The previous prime is 255049166633. The next prime is 255049166683. The reversal of 255049166678 is 876661940552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63762291668 + ... + 63762291671.

It is an arithmetic number, because the mean of its divisors is an integer number (95643437505).

Almost surely, 2^255049166678 is an apocalyptic number.

255049166678 is a deficient number, since it is larger than the sum of its proper divisors (127524583342).

255049166678 is a wasteful number, since it uses less digits than its factorization.

255049166678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127524583341.

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 255049166678 in words is "two hundred fifty-five billion, forty-nine million, one hundred sixty-six thousand, six hundred seventy-eight".