256703164450 has 48 divisors (see below), whose sum is σ = 498401689536. Its totient is φ = 98182497600.

The previous prime is 256703164447. The next prime is 256703164451. The reversal of 256703164450 is 54461307652.

It is a junction number, because it is equal to n+sod(n) for n = 256703164397 and 256703164406.

It is not an unprimeable number, because it can be changed into a prime (256703164451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3379084 + ... + 3454216.

It is an arithmetic number, because the mean of its divisors is an integer number (10383368532).

Almost surely, 2^256703164450 is an apocalyptic number.

256703164450 is a deficient number, since it is larger than the sum of its proper divisors (241698525086).

256703164450 is a wasteful number, since it uses less digits than its factorization.

256703164450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78139 (or 78134 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 256703164450 in words is "two hundred fifty-six billion, seven hundred three million, one hundred sixty-four thousand, four hundred fifty".