855604264608 has 576 divisors, whose sum is σ = 2752041277440. Its totient is φ = 250822656000.

The previous prime is 855604264583. The next prime is 855604264667. The reversal of 855604264608 is 806462406558.

855604264608 is a `hidden beast` number, since 8 + 5 + 5 + 6 + 0 + 4 + 26 + 4 + 608 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 847972008 + ... + 847973016.

It is an arithmetic number, because the mean of its divisors is an integer number (4777849440).

Almost surely, 2^855604264608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855604264608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376020638720).

855604264608 is an abundant number, since it is smaller than the sum of its proper divisors (1896437012832).

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

855604264608 is a wasteful number, since it uses less digits than its factorization.

855604264608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 54.

The spelling of 855604264608 in words is "eight hundred fifty-five billion, six hundred four million, two hundred sixty-four thousand, six hundred eight".