256331363546 has 8 divisors (see below), whose sum is σ = 387432137664. Its totient is φ = 127187317660.

The previous prime is 256331363537. The next prime is 256331363591. The reversal of 256331363546 is 645363133652.

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

It is a self number, because there is not a number n which added to its sum of digits gives 256331363546.

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, 489181730 + ... + 489182253.

It is an arithmetic number, because the mean of its divisors is an integer number (48429017208).

Almost surely, 2^256331363546 is an apocalyptic number.

256331363546 is a deficient number, since it is larger than the sum of its proper divisors (131100774118).

256331363546 is a wasteful number, since it uses less digits than its factorization.

256331363546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978364116.

The product of its digits is 3499200, while the sum is 47.

The spelling of 256331363546 in words is "two hundred fifty-six billion, three hundred thirty-one million, three hundred sixty-three thousand, five hundred forty-six".