855555635088 has 1800 divisors, whose sum is σ = 3503451764736. Its totient is φ = 196582256640.

The previous prime is 855555635087. The next prime is 855555635119. The reversal of 855555635088 is 880536555558.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (855555635087) by changing a digit.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 6736658481 + ... + 6736658607.

Almost surely, 2^855555635088 is an apocalyptic number.

855555635088 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855555635088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751725882368).

855555635088 is an abundant number, since it is smaller than the sum of its proper divisors (2647896129648).

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

855555635088 is a wasteful number, since it uses less digits than its factorization.

855555635088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 144000000, while the sum is 63.

The spelling of 855555635088 in words is "eight hundred fifty-five billion, five hundred fifty-five million, six hundred thirty-five thousand, eighty-eight".