256623324477200 has 60 divisors (see below), whose sum is σ = 616540533999360. Its totient is φ = 102648830820480.

The previous prime is 256623324477011. The next prime is 256623324477283. The reversal of 256623324477200 is 2774423326652.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87130241 + ... + 90027359.

It is an arithmetic number, because the mean of its divisors is an integer number (10275675566656).

Almost surely, 2^{256623324477200} is an apocalyptic number.

256623324477200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256623324477200 is an abundant number, since it is smaller than the sum of its proper divisors (359917209522160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256623324477200 is a wasteful number, since it uses less digits than its factorization.

256623324477200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118584 (or 3118573 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 53.

The spelling of 256623324477200 in words is "two hundred fifty-six trillion, six hundred twenty-three billion, three hundred twenty-four million, four hundred seventy-seven thousand, two hundred".