20255703278 has 8 divisors (see below), whose sum is σ = 30387207072. Its totient is φ = 10126634256.

The previous prime is 20255703241. The next prime is 20255703289. The reversal of 20255703278 is 87230755202.

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

It is a congruent number.

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, 587750 + ... + 621257.

It is an arithmetic number, because the mean of its divisors is an integer number (3798400884).

Almost surely, 2^20255703278 is an apocalyptic number.

20255703278 is a deficient number, since it is larger than the sum of its proper divisors (10131503794).

20255703278 is a wasteful number, since it uses less digits than its factorization.

20255703278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217386.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 20255703278 in words is "twenty billion, two hundred fifty-five million, seven hundred three thousand, two hundred seventy-eight".